Originally Posted by Rammitinski
Yes, the Samsung is not the box you want to use with a 480i 4:3 analog TV that has no zoom mode of it's own.
Otherwise you'll be watching postage-stamped 4:3 images on the 720p/1080i channels.
The Samsung does have a Zoom mode, and I don't have a 480i 4:3 analog TV.
The Samsung does provide awesome HD image via 1080i HDMI output. However, the output setting is controlled via a hardware switch. So 480i SD image is scaled up to 1080i. The scaling is OK, but the worst part is the right side of the image is clipped off. (around 10%).
My TV, a Panasonic plasma, does a better job at showing SD material when fed a 480i signal. Therefore I prefer to watch SD channels through the Zenith.
If there's a way to turn off the RF output in the Zenith via a menu item, so pass through works when the unit is on and off, the great! Otherwise I'll have to buy a splitter and the 901 offers me nothing useful.