It was glimpsed briefly in The Flash's first season finale, but the appearance at Comic Con suggests more in the future for Jay Garrick's helmet. In the comics he was the original Flash, existing in an alternate dimension to Barry Allen.
Tom Baker is the Comics Editor at WhatCulture! He's heard all the Doctor Who jokes, but not many about Randall and Hopkirk. He also blogs at http://communibearsilostate.wordpress.com/