tv dimension , resolution

1.tv has the dimension x:y
2.witin x:y resol a:b can be laid out
3.as the resolution goes down, max resolution supported is redistributed to act as lower one OR a small portion of the screen will be used for it
3.the hardware might adjust the incoming resolution to fit to target resolutions
4.the graphics hw have different modes of operation
5.all must support the basic mode
6.1080p is by todays std the most precise defenition
http://www.geek.com/hdtv-buyers-guide/resolution/
7.
http://www.tomshardware.com/forum/264009-33-resolution-close-1080p
8.http://en.wikipedia.org/wiki/File:Vector_Video_Standards2.svg