Bobby Burgess was television’s first dancing star. Put aside Dancing with the Stars, Bobby was cutting a rug with the samba, waltz, tango, jitterbug, and more as the featured dancer on The Lawrence Welk Show for 21 years from 1961 to 1982, then on Welk reruns airing on PBS right up to this day. And before that, he was dancing up a storm as an original Mouseketeer on Walt Disney’s classic Mickey Mouse Club TV series. Now Bobby tells all in his behind-the-scenes book, Ears & Bubbles: Dancing…