It is a Sony KDF-E42A10 HD RP-LCD TV.
So then why do you care about offset scan when you have proper PC input on a progressive digital TV?
It's LCD, therefore, not interlaced 1280x720 is the resolution you want and 60hz is the setting you want.
SD and HD refresh @ 59.94, and the TV synchs it to 60hz with linear interpolation, but digital is in synch throughout, no conversion needed.
If you had a 1080i TV (primarily CRT based solutions), then it'd be an issue, in your case it's not.