think you could pass the WAF by convincing her you need a new AVR & speaker setup? That would get you a ton of HDMI inputs, then a simple Harmony remote setup to make everything work together.
Aside from that, I don’t have any personal experience with just basic HDMI switchers, but make sure you get a POWERED one, as I’ve read lots about bad luck with non-powered and HDCP issues. Maybe with an IR-learning remote you can program a script to change inputs as needed?
