I got some old consoles as a gift a while back and now i have started to see if they work. A few did not . There will be many many many cables going everywhere so time to get a new bench for the TV and an extra shelf. None of the consoles will be connected to the power when they are not used. 30 year old electronic is not that stable and every repair on them seems to be done with adhesive tape .
Next goal is to get a few games for each one. Time to search some retro sites.