I have a 3100HD which I don't know of a way to adjust ...
However, I thought the 4200 had a way to select what formats your TV supports. I think the way to access the screen is to turn the STB off and the TV on ... and hold down GUIDE + INFO untill the 'setup wizard' screen comes on.
Note, the Explorer 4200HD HDTV Set-up Instructions available on the SA website also describes this procedure.
I'm certain sure that there is a way to change the output format between 1080i & 480i. I showed a friend who has a 4:3 tv how to do it. Whenever watching 4:3 programming he was getting windowboxing and letterboxing. To get around this he was using the S-video input for 4:3. But with Cablevision, that means that the on-screen display doesn't work.
Changing the output format allows him to use the component connection for everything.
I don't own this STB, so I can't tell you how to do it. I "winged" it at my friends house.
One more thing. I know that I did it completely with the remote. I didn't have to touch the STB.
A forum community dedicated to home theater owners and enthusiasts. Come join the discussion about home audio/video, TVs, projectors, screens, receivers, speakers, projects, DIY’s, product reviews, accessories, classifieds, and more!