I have had a pretty flawless experience with my 622 until recently. My TV2 has been losing locks like crazy. Have a 1000+ up, and install is correct. Signal on the 110 - avg. 110, 119 - avg. 110, 118 -avg, 88, and 129 - avg. 105. Video doesn't pixelate, but does garble, audio too, and constitutes as a loss of lock. Sometimes up to 15 a day on tuner 2, while 1 might lose up to 3. Weird. Use the component outs and composite for audio. Also, only have noticed this with the 1000+, in the sys info page, the 118 ALWAYS comes in with a red X, although in the point dish screen, you can see the signal on the meter, and programing is in. Hopefully the 4.01 update fixes this.