1x17 Menace of the Conqueror Caveman!

One wonders why they created a new character and didn’t just use Vandal Savage?

Perfectly acceptable. Booster Gold split the difference between being annoying and being funny, and it's a tough balance. For a story about folks from the future, it was nice to see Billy West and Michael Dorn voicing characters here. I get tired of the Power Rangers-esque plot of the bad guys getting some super-powering boost in the last third of the episode (the show did it in the Kung Fu one as well), but otherwise it was an enjoyable enough, if occasionally lumpy half hour.