Just venting. Just came out of a three day diagnostic nightmare that began after I replaced two 8way splitters with two 4 way splitters. Two of my DVR's immediately began to act up, one with 771A problems, one with stuttering/ can't get satellite info on startup problems. Obviously went back to the 8 ways first. Nope, no dice. Oh boy, did I fry something changing it? After about a billion combinations, cable tracing, re-terminating coax ends, found out one DVR simply went bad (still possibly related to changing splitters), and one coax went bad at the same time.