klapstok

For videos it should be plenty, just don't expect to play most games at 4k on that laptop. Think of the smart tv features as more of a bonus than a necessity as smart tvs are usually priced about the same as non-smart tvs these days as it is low cost to add smart features and it moves units well. 

i'd go for this instead. I know it's huge, but it's much much better than the hyper212
Gelid Solutions Phantom

thank you very much!
 

My suggestion
PCPartPicker Part List Type Item Price CPU AMD Ryzen 7 3700X 3.6 GHz 8-Core Processor €323.95 @ Bytes At Work CPU Cooler Gelid Solutions Phantom CPU Cooler €32.95 @ Paradigit Motherboard MSI B450-A PRO MAX ATX AM4 Motherboard €111.05 @ Azerty Memory Crucial Ballistix 16 GB (2 x 8 GB) DDR4-3600 Memory €122.19 @ Azerty Storage Crucial MX500 1 TB M.2-2280 Solid State Drive €139.99 @ Paradigit Video Card Gigabyte Radeon RX 5700 XT 8 GB GAMING OC Video Card €450.05 @ Azerty Case Cooler Master MasterBox NR600 (w/o ODD) ATX Mid Tower Case €74.95 @ Paradigit Power Supply be quiet! Pure Power 11 CM 700 W 80+ Gold Certified Semi-modular ATX Power Supply €109.89 @ Alternate Belgium Case Fan ARCTIC Arctic F12 74 CFM 120 mm Fan €9.98 @ Alternate Belgium Case Fan ARCTIC Arctic F12 74 CFM 120 mm Fan €9.98 @ Alternate Belgium Case Fan ARCTIC Arctic F12 74 CFM 120 mm Fan €9.98 @ Alternate Belgium Case Fan ARCTIC Arctic F12 74 CFM 120 mm Fan €9.98 @ Alternate Belgium   Prices include shipping, taxes, rebates, and discounts     Total €1404.94   Generated by PCPartPicker 2020-04-22 12:06 CEST+0200   If you prefer sticking to X570 boards, get the Asus X570-P.
Not sure what you ask from a case, so I just picked one with mesh front and transparent side
Added case fans for airlfow
Added cooler because the stock one is rather weak
MSI X570 boards below the Unify are not competitive with those from Asus Asrock and Gigabyte for the price, those below the Carbon arent even better than their B450 boards in any significant way. 
3600MHz memory is basically at the same price range (3600MHz CL18 kit of Corsair Vengeance LPX), so more speed is better. Spend more for a CL16 kit since it's not that much more anyways
Changed the SSD purely because WD Blue is previous gen stuff for only slightly cheaper, though the gains arent significant so either will do
One of the worse coolers on a hot GPU (225w class), replaced
overkill PSU, dont need to go beyond 80+ Gold efficiency unless electricity is really expensive (since we're talking about only 2-3% efficiency gain, it will take forever for the PSU to pay for itself)

better motherboard (msi x570 boards have bad vrms), faster ram, nvme ssd, better gpu (the mech and evoke have thermal issues) a good case and a less overkill psu.
PCPartPicker Part List Type Item Price CPU AMD Ryzen 7 3700X 3.6 GHz 8-Core Processor €323.95 @ Bytes At Work Motherboard Asus PRIME X570-P ATX AM4 Motherboard €195.00 @ Paradigit Memory Corsair Vengeance LPX 16 GB (2 x 8 GB) DDR4-3600 Memory €108.89 @ Alternate Belgium Storage Crucial P1 1 TB M.2-2280 NVME Solid State Drive €129.47 @ Azerty Video Card Gigabyte Radeon RX 5700 XT 8 GB GAMING OC Video Card €450.05 @ Azerty Case Fractal Design Meshify C ATX Mid Tower Case €89.00 @ Paradigit Power Supply Corsair TXM Gold 550 W 80+ Gold Certified Semi-modular ATX Power Supply €82.95 @ Bytes At Work   Prices include shipping, taxes, rebates, and discounts     Total €1379.31   Generated by PCPartPicker 2020-04-22 12:06 CEST+0200    

My advice is put some SSD in, at least for the system ~250GB, I would recommend ~500GB for games. And That PSU is good, but your configuration will never drag as much as 750W, I think 650W PSU would be more suitable and also more affordable. 
 
Case is very subjective but my suggestions of cases I like: NZXT H510 [Elite], Fractal Design Meshify C, Phanteks Eclipse P400A(S)

PCPartPicker Part List
CPU: *AMD Ryzen 7 3700X 3.6 GHz 8-Core Processor  (€323.95 @ Bytes At Work) 
Motherboard: MSI B450M MORTAR TITANIUM Micro ATX AM4 Motherboard  (€120.95 @ Bytes At Work) 
Memory: Corsair Vengeance LPX 16 GB (2 x 8 GB) DDR4-3200 Memory  (€105.95 @ Bytes At Work) 
Storage: Crucial P1 500 GB M.2-2280 NVME Solid State Drive  (€81.95 @ Bytes At Work) 
Storage: Toshiba P300 2 TB 3.5" 7200RPM Internal Hard Drive  (€66.89 @ Alternate Belgium) 
Video Card: MSI Radeon RX 5700 XT 8 GB MECH OC Video Card  (€424.05 @ Azerty) 
Power Supply: Corsair CXM 550 W 80+ Bronze Certified Semi-modular ATX Power Supply  (€84.89 @ Alternate Belgium) 
Total: €1208.63
Prices include shipping, taxes, and discounts when available
*Lowest price parts chosen from parametric criteria
Generated by PCPartPicker 2020-04-22 12:05 CEST+0200

order placed. thanks for the help!

nice, so better to change the GPU to MSI. thnx

Thanks! I'll stick with the stock for now. 
RAM is almost double the price so I'm going for the 3200Mhz cl16.
if they eventually drop in price, maybe in a year or so, I'll swap them.

or safer to take this one 
https://azerty.nl/product/cooler+master/3670421/coolermaster-hyper-212-black-edition-koeler-voor-processor-120-mm

https://azerty.nl/product/msi/4033100/radeon-rx-5700-xt-gaming-x-grafische-kaart-radeon-rx-5700-xt 
this one right?

i'd wait and use the system for a while to see if you actually need to replace the cooler. I have a 2600x (draws more power than 3600) with stock cooler and I'm happy with it.

nice, so better to change the GPU to MSI. thnx

ok I'll order the aliexpress one! 

It probably would do. But, you can go without it and order a Snowman from AliExpress (will take weeks to arrive, but during the time you can use the PC with the stock Wraith), it's cheaper and cools better.
 
I am not familiar with RAM prices in the NL. Going with a 550W PSU would probably allow for faster RAM.

with the price of a better cooler you can get the 3600x directly and have some money to spare

Thanks! I'll stick with the stock for now. 
RAM is almost double the price so I'm going for the 3200Mhz cl16.
if they eventually drop in price, maybe in a year or so, I'll swap them.

There you go.....
 
PCPartPicker Part List
CPU: AMD Ryzen 5 3600 3.6 GHz 6-Core Processor  (€205.05 @ Azerty) 
Motherboard: MSI B450-A PRO MAX ATX AM4 Motherboard  (€101.05 @ Azerty) 
Memory: G.Skill Ripjaws V 16 GB (2 x 8 GB) DDR4-3600 Memory  (€120.38 @ Newegg Belgium) 
Storage: PNY XLR8 CS3030 1 TB M.2-2280 NVME Solid State Drive  (€159.00 @ Paradigit) 
Storage: Seagate Barracuda Compute 2 TB 3.5" 7200RPM Internal Hard Drive  (€63.89 @ Alternate Belgium) 
Video Card: MSI Radeon RX 5700 XT 8 GB GAMING X Video Card  (€460.00 @ Azerty) 
Case: Cooler Master MasterBox NR600 (w/o ODD) ATX Mid Tower Case  (€80.05 @ Azerty) 
Power Supply: BitFenix Formula Gold 650 W 80+ Gold Certified ATX Power Supply  (€99.95 @ Azerty) 
Total: €1289.37
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2020-01-21 14:57 CET+0100

With a better cooler the 3600 performs like the 3600X.
With the cooler that comes with the 3600 the 3600X performs worse than the regular 3600X.

There should be no issues.
 
Just make sure to remove the drivers of the previous GPU (I'd recommend using DDU) before installing the latest AMD Radeon 2020 drivers (at this time the 20.1.2 but there will be 20.1.3 in a few days).

A 550w unit show be fine. But you can go with the 650w unit to be on the safer side.

Thanks guys! you made me alot wiser!