As a follow up to my Cox woes with Tivo... I had a four splitter on my main tv so I could have 3 TVs showing football on the weekends. With the Cox DVR and two additional Cox HD receivers I had no problems. With Tivo and cablecard I didn't have any problems with HD channels except two Starz channels on plus pack. Signal strength on those two channels significantly less than other starz plus pack channels.
Finally removed splitter today and ran coax cable from wall to Tivo. I can now get those two channels without issue. Signal strength is still significantly less. Two main Starz HD channels are in the 90 range. 4 Starz plus pack channels are in 70 range - they drop to 50 range when plugged into 4 way splitter but I still receive them without issue.
Other 2 Starz plus pack channels register at 49 at peak signal strength with two way splitter or directly from wall to Tivo. No issues. Put the four way splitter on (and I've tried both amplified and non amplified 4 way splitter) and signal on those two channels drop below 35 and at that point it doesn't show up at all - says "searching for signal."
Guess I'll bite the bullet and call Cox out to check signal strength on the line itself. Don't know what else to do at this point. Really would like to have the four way splitter on that TV for football, but don't want to hassle with switching between splitters every time I want to watch the plus pack channels.