Interesting OTA Canuck! What dimensions would you suggest for receiving only real channel 8? I have some spare 1x1 screen that is 24" wide by 7 feet long. It would be easiest to try with a 32" wide by 24" tall screen. Any need to cut out the slot if going for vhf only? Our local ch 8 is very strong and has a margin to dropout of 20 dB with a balun attached to coax and lying on the roof. In contrast, a m-4 with proper size screen has a margin to dropout of ~50 dB.