well I lied
I got a HD receiver (since the tube is on a subchannel here in Mpls) so I decided to run a new cable from the antenna to the receiver. The antenna is 10 feet up on a tripod on the deck, so its no biggie to do. Just take down the mast and put the new cable on, run it under the deck into the house and done.
But with it 92 out within 5 minutes it was blech out there (too damn humid out). Outside for 20 minutes (came in once for water break)...
Ran new cable and hooked up to HD receiver (a Dish 811) and now I'm Tube-ing