[TV Aerial switchboxes]
I never saw one with a computer, they were more
commonly used with TV games
consoles. I have one somewhere. Actually I think I've seen them in pound shops
(equivalent of dollar stores) recently, next time I am going around such places I
will have another look
I was right. The pound shop next to Woolwich Arsenal station has a 3-way aerial
switchbox, sold as a 'TV game switch'. 3 Belling-Lee sockets, a switch (which
doesn't
look as though it will provide much RF isolation) and a short cable ending in a
Belling-Lee plug.
-tony