Had Superdish installed in September to get locals. Replaces Dish 500. Now to the problem. I am getting color fade on both my TV,s. It occurs over a 12 to 24 hour period. It works in blocks of channels. I have a 510 and a 311 receiver. The problem is on both sets at the same time. I have had tech,s out 5 times so far. The problem is getting worse. They have replaced the DP34 twice. The lnb set. Everone has changed wire and ends. The dish has been tuned everytime. 105- 76 on transponder 7. 99 to 114 on transponder 11 and 12 on 119 and 110. 311 receiver new in March. 510 one year old. Have had TV sets checked, OK. Color good with DVD & VCR. Most tech,s say they can't see problem. I am at the end of my rope. PLEASE HELP!!!