The new Doctor Who episode – and what a pivotal one it was – was shown on Christmas Day, here in the U.S. as well as in England. Today and tomorrow, BBC America continues the festivities by showing episodes from various incarnations of the modern Doctor, starting this morning with three episodes from Season 2, featuring David Tennant – now starring on TV in both Broadchurch and its Americanized version, Gracepoint – as the Doctor, and Billie Piper as his Companion, Rose. Episodes from Seasons 3 and 4, also starring Tennant, continue through midnight.