Another approach with a laptop is to plug-in a second screen.
The price for a new 20" monitor is under $100.
Garage sale / Thrift shop prices should be in the $20-30 range for one in decent shape.
[Your bargaining mileage may vary.]
An old [and 'dumb'] flat-screen TV usually has a VGA input -- DVI / USB / HDMI if you're lucky.
Plug the old TV into your laptop and, voila, you have a 'smart' TV.
uhh... it IS important to make sure that whatever connection the second screen needs also works with the laptop.
[This is the embarrassed voice of experience speaking.]
Let me offer the SoCal Senior Solution:
1) Sit in your favorite TV viewing chair
2) Turn on your 'smart' TV and bring up this website
3) Grab your sketchbook/tablet/2-n-1/laptop and let the gestures begin!
Ah, we're just a bunch of lotus eaters here in SoCal.
;-)
