Re: Happy with my sneakernet TV
"On a side note I bought a 'dumb' TV recently and whilst flicking through the instruction manual was surprised to find a full copy of the GNU GPL."
Not sure there is such a thing as a dumb TV anymore. I've even seen a "set top box" for FreeSAT that clearly had MythTV in it (although somewhat torn to bits and re-assembled like a 2 year old with an Airfix kit). Yours probably has bits of FFMPEG or libmpeg in flash somewhere - why reinvent the wheel?
My Samsung telly even has an AV section in its menu. It lives on a separate VLAN +SSID I keep for IoT stuff. Must get around to looking at the flow logs to see what it gets up to. The Zoneminder server and RPi on the same subnet/VLAN have firewalls, that refuse connectes from their own network. I'm scared of my telly 8)