TV transmitter Kits?

Well I hope this is ok to post here as I am not sure what other category on this web site it might go better in so here goes:

Has anyone built any TV transmitter kits?

I've tried the TV transmitter kit from vectronics and it works ok but the signal strength is pretty poor... I practically have to have my tv's antenna sitting right next to the transmitter in order to get a static and interference free signal on my TV...

and the Vectronics TV transmitter kit uses a loop antenna and I have heard that loop antennas are pretty poor for transmitting signals, they seem to work good for receiving but are no good for transmitting...

in the mid 1990's in my high school electronics class I tried the Ramsey electronics TV transmitter kit and so did another classmate as well as the electronics teacher and none of us could ever get the thing to work at all... and the teacher was no slouch either as he had worked for many years as an electronics teacher at an electronics institute... though now it looks like Ramsey has changed the design of their TV transmitter kit I am kind of gun shy about possibly throwing away my money again if it should turn out as poorly as the first TV xmitter kit I tried from them...

So does anyone possibly know of any better TV transmitter kits? I'd love to find a TV transmitter kit that is on par with the SStran broadcast band AM transmitter... That kit is incredable and if I could find a good quality TV transmitter kit I'd be willing to pay about the same price as the SStran kit for it...

I would like to find a good kit as I hate to have my VCR sitting on top of my antique TV's when I want to watch leave it to beaver or I love lucy on them as a VCR on top of a 1954 TV just does not look right

any help would be greatly appreciated.
thanks,
Antonio
MN, USA