Audio shuts off on the receiver when I turn off the tv.

[Zman2k2]

You probably have HDMI CEC turned on in some or all of your gear. A Wiki description of HDMI CEC is

Consumer Electronics Control (CEC) is a one-wire bidirectional serial bus that uses the industry-standard AV.link protocol to perform remote control functions. CEC wiring is mandatory, although implementation of CEC in a product is optional.[68] It was defined in HDMI Specification 1.0 and updated in HDMI 1.2, HDMI 1.2a, and HDMI 1.3a (which added timer and audio commands to the bus).[80][81][82][83] The feature is designed to allow the user to command and control multiple CEC-enabled boxes with one remote control and for individual CEC-enabled devices to command and control each other without user intervention.[81]
Trade names for CEC are Anynet (Samsung); Aquos Link (Sharp); BRAVIA Sync (Sony); HDMI-CEC (Hitachi); Kuro Link (Pioneer); CE-Link and Regza Link (Toshiba); RIHD (Remote Interactive over HDMI) (Onkyo); SimpLink (LG); HDAVI Control, EZ-Sync, and VIERA Link (Panasonic); EasyLink (Philips); and NetCommand for HDMI (Mitsubishi).[84][85][86][87][88]

What it basically means is that you can control all items connected via HDMI with one remote. You'll have to go through the menus of each item to turn off that feature. Or leave the TV on.