You could get a Zenith DTT901 used for around $30.00 that would do the trick for the CRT TV. It is pretty simple, but pulls in the channels well. Just be ready to be really pissed at the cable company when you see how good TV looks OVA. I remember when I first switched to an OVA signal and everyone thought I had upgraded to an HD set (this was back when HD sets were new). It was just an old Sony CRT putting out the same 480P as before; but the signal is so much cleaner when you get it directly from the source that it had everyone fooled!