Distribution amp for multiple TVs?

[toxcrusadr]

Short version: How can I hook up a bunch of tube TVs (not antique, recent but not flat screen HD) so they all play the same thing like the TV department at a store?

I volunteer at a huge charity garage sale and every year we get TVs donated. this time we hardly sold any, but I know people buy them for their kids to use for gaming, etc. We test them but we don't have them playing. Well, we had one playing off a DVD player, and guess which one got sold! I'm thinking if we could market them better, have them all playing off a DVD through some kind of distribution hub, we might do better.

It would be nice to have both 75 ohm cable and audio/video RCA outputs (red/wh/yellow) but if it was only one or the other we could deal with it.

Any ideas what hardware would be good for this? And it has to be cheap or free, again it's a charity benefit sale.