Hello,
What is the easiest way to play using the phone and watch it also on TV?
Go to
lichess.org on your smart TV and watch the game there?
Something about Lichess doesn't render well in WEBOS 3.5...I think it's he puzzles but I forget. Normal play might be OK. You can also use AppleTV and screen mirroring for playing on an iphone/ipad and watching on a TV.
samsung also has screen mirroring.
I tried the screen mirroring right now ! works fine i didn't know it existed. the only issue is that i cannot have it full screen :/