HD programming looks better on every CRT set that I've seen it on. I wonder if your brother has his TV connected to his HD source properly.

he has comcast cable. says he has hd tuner from them. supposed to be hooked up right .the hd and non-hd channels both work. i flipped between both and no change in picture quality. says he is using component cables also. tv is in custom cabinent and hard to get access to rear but he says it is hooked up right. he got new plasma recently and that looks awesome. had friend who had 57" pioneer elite rptv and he tried a hd tuner and said he could not see difference. that tv is gone now. he has new flat panel set and says hd is awesome. always wondered if he had it hooked up right? never did check it out.

Check the output settings on the cable box. Make sure they are in 1080i.

got a plasma for xmas. also got new comcast "small" black hd box. model 110 i think? would not power up. got 2nd box. very erratic remote operation. got large silver comcast 2nd gen box. same remote operation. tech came out and replaced with old style silver hd box. works fine now. says lots of complaints with box operation with plasma tv's. not sure of connection. how do you access setup menu on this old cable box? i think you push some menu button with power off?

"how do you access setup menu on this old cable box? i think you push some menu button with power off?"

That how you do it on many cable boxes so it is the first place I would start.

yes, push menu button with cable box off. i may check brothers setup on crt tv eventually. my current box does not have hdmi. no big deal. don't have a cable bundling issue.