If you enjoy watching your movies on a 15 inch screen, yes a laptop will do.
But if you already have a large TV, think about a mini PC like a Beelink, HDMI'ed into the telly.
I got a top b0ii0cz one for Bht 16000, never looked back. Into my 4K TCL telly. Whooo!
Came with W11 Pro, 1 Tb M2 drive. OK, only 3 USB ports, but hubs are dirt cheap. 2 x HDMI ports