Old Movies and Free Space
I've been surfing the freeview channels this month, and partaking of their Christmas offerings. To be honest, it's a pleasant change from the 96th repeat of Big Momma's House, or Home Alone. There are loads of much older Christmas movies out there, but most in the 4:3 Aspect ratio (square shaped picture).
So, instead of twiddling with the aspect ratio button - which might be labelled "screen size" or "aspect" or "format" or worse - you'll have to wade through menus - or look for a button like this:
Why not sellotape Christmas cards across the spare TV screen space?
You can re-live those joyous festive scribblings whilst you watch the movie - bargain!