I have a "legacy" system: 5 LNB Slimline Dish, OTA antenna, WB68 multiswitch w/ receivers in four rooms on a single (2nd) floor of my house (see attached diagram). The multiswitch sits on the floor, behind my couch, and I've run all the existing wiring through walls and/or drop ceilings. My first floor has no drop ceilings, but I have relatively easy access to all rooms via the basement. I want to expand to my first floor and add three receivers (one HD DVR and two SD receivers). Would prefer to provide OTA signals on 1st floor (I'll follow Hasan's suggestions on this). Note that MRV is not important to me. Q1: Should I bother to convert to SWM? Q2: What additional equipment will I need to expand to 1st floor? e.g. OTA diplexer, Coax lines from WB68 to DVRs. Q3: If I do it myself, can I get better deals on equipment outside of D* (i.e through 3rd party vendors)? Note that I'm a long time subscriber and D* *may* give me a better than advertised deal on rcvr hardware. Thanks in advance!