Help 5870 to 42" hdtv settings

[NeonGuy]

I have a 42" hdtv and am wondering how to get 720p or 1080 p
since it shows me basic resolutions @ 60hz and hdtv only 2 settings @ 30i

how do i set it up ?
using hdmi connecter and it works but just not as crisp as my lcd hp w1907 monitor ..

thanks,
Randy

 

[iGamer]

720P is 1280x720 and 1080p is 1920x1080

getting there will be another post from another person, but those are the resolutions you will need for each thingamajig