Lately there have been issues with my directv reception on some particular channels. These have been ESPNHD, ESPN2HD, and my tampa bay area hd locals in which all seem to come from the 103 satellite per lyngsat. Pretty much its an issue with the 103 satellite. Every day around 5pm these particular channels pixellate randomly on all receivers. Currently I have 3 H-21's and 1 HR 22 connected to a 6 x 8 switch which is connected to the 5 lnb slimline dish. I have already verified line of sight and there are no issues (I'm in florida, dish elevation is really high and there are no obstructions whatsoever.) Pretty much I have narrowed the problem down to either the lnb or the switch due to the fact the problem is ocurring on all receivers at the same time. Any suggestions?