Thanks for all the replies guys. over 2 yrs with dish never had to do this. first service call today tv2 was fuzzy b/c customer changed tv2 channel too close to ota channels. haha pretty crazy.
Okay I was wondering the other day if you could run a tv2 sig and a outdoor antenna sig into a splitter then connect to coax port on tv2 and have both sig come threw properly. or will there be interference between the 2 sig's