Anything over 30 is to big. If you want that big, remember how friggin heavy some big screens can get
Most 1080p HDTV's resolution is 1920 x 1080.I doubt it. Screens with resolutions over 1920x1200 exist, but they're extremely uncommon.
Common widescreen resolutions for monitors:
Common widescreen resolutions for HDTVs - also monitors for all intents and purposes.
720P/1080i TVs which can include the following native resolutions: