Well, it would be really fun to get some of those Brigade Games 1950's style aliens and put them in a variety of historical or pre-historical contexts. Why shouldn't those aliens interact on our gaming tables with Copplestone cavemen and Pulp Figures Neanderthals and HLBSC Home Erectus, and then encounter ancient Egyptians and Macedonians and Olmecs, followed by encounters with King Arthur and Vikings and Incas. Could be good contests in there if the alien weapons make a lot of light and noise but aren't actually very lethal to humans (kind of like the pistols in Star Wars).
I think the "Hitler Channel" is now the Military History Channel. Programs on all the history type channels are really hit and miss. I'm particularly disappointed in the Sci-Fi channel, however, because about 2/3 to 3/4 of what is on there is something I would classify as supernatural horror instead of Sci-Fi. I wish that a specific horror channel would take that stuff away from the Sci-Fi channel so that that Sci-Fi channel could just show sci-fi. But, perhaps worse, is BBC America, which doesn't really show the great BBC programing, such as the Coupling series. Most of the good BBC stuff on American TV is on the public broadcasting channels. But there's no "Ancient Aliens at Stonehinge" type shows that I recall on either of those channels.