Incoming cable from street-->2-way tap (for modem)-->4-way splitter 1:Terminated at splitter 2:Master Bedroom, feeds TiVo S2 3:Spare room, feeds QAM to DTV 4:Main room, split once again behind cabinet, 1 for TiVo S3 and 1 for the TA While writing this post, I removed the splitter behind the cabinet. #4 now feeds the TA which in-turn feeds the S3. The levels are now: Tuner -4 FDC -10 RDC 49 In any case, there are no amps, attenuators, or extra equipment. Signal strength at the TiVo is anywhere from 95 to 100, SNR's are usually 33 to 35. 99% of the time, no RS uncorrected errors. My next experiment is to take the 4-way splitter out and see how that affects my TA levels.