TV Electronics cabling help
Alright, so I'm an electrical engineering student (senior no less) and I'm having a bit of a problem.
I've got two coaxial inputs to a digital TV (with tuner), one from the antenna (gets great signal), and one from the cable outlet (analog standard cable).
I want to run them both at the same time to the TV. I currently have a switch, but when I switch it, the TV gets confused and I have to re-scan for all the channels, which is annoying.
The antenna is almost all digital (5.1, 5.2, 11.1, 11.2, etc), and the cable is almost all analog. It seems to me there shouldn't be any overlap, so I tried using a splitter backwards and turning it into a splitter. Didn't work. When I just plug in one at a time, they work fine, but when I put in both inputs at once, they don't work.
If I get a real splitter, will it work? Or is it because there is some overlap even though I think there shouldn't be?
If just combing the signals won't work, can I convert the coax from one of them to another type? The antenna is HD, so I don't think I can convert to RCA without screwing up the signal. So if possible, I guess I would use the antenna straight in to the normal coax antenna input, and then convert the cable into something else. I have lots of inputs, I could convert to RCA, to HDMI, to component, to VGA, whatever. Is there anything that will do this?
As cheaply as possible would be nice.
Thanks for your help.