TV transmitter Kits?

I have one of the new Ramsey kits. The thing is still terrible. It does transmit a good distance, but converting the audio and video from the VCR to RF frequency it terrible. The only channel I could get to work is channel 5. That's the only channel I could (barely) get A/V sync on the TVs. Very poor gain too. And only my B&W TVs would work with it. Forget about color and modern TVs.

What I am going to do is design and build my own TV transmitter one of these days. Try to build it as powerful as possible within FCC regulations.