Booting to Steam Big Picture under certain conditions

Hi all, I’ve no idea if this is possible but figured I’d see if anyone has done anything similar. Here’s the problem: basically I have a tv that I sometimes plug into my desktop pc in my room. Problem is when I do so I have to manually move cables around to remove the desktop monitors and then I need a mouse and keyboard to get into steam big picture. If anything breaks along the way I need to use a keyboard and mouse again. What I’d like to do is somehow be able to say under certain conditions only use the tv as a monitor otherwise ignore it and vice versa so I don’t have to unplug it or replug it every time I switch between my desk or my couch. Another want is to have it boot straight to big picture when and only when my tv is connected. I suspect this is something I could solve with scripting? Just would need to know where to look. Also could possibly dual boot say bazzite but that wouldn’t be a full solution. I do have another pc that I’ve slowly accumulated from upgrades but the 7700xt isn’t really a 4k card. Any input would be appreciated. Thanks!