I would certainly be in favour of them moving ch 6 paris to the uhf band. But unfortunately with London being so good or bad for tropo (depending on your viewpoint) there aren't many open channels that wouldn't suffer from severe tropo. You have to worry about Detroit, Cleveland, Erie, Buffalo and Toronto plus the stronger channels out of Flint, Lansing, Rochester....The least affected channels would seem to be 27, 35 or 46. Another possibility would be channel 29 after the cbc shuts off their analog signal out of kitchener on July 31. All the other channels would suffer from moderate to severe tropo. If they wanted to move to vhf hi then maybe channel 11 might work. Not a lot of good choices though.
CM 4221hd, CM 7777, CM 9521A, 30 foot tower, Farthest station KWKB Iowa City, Iowa 525 miles.