XM's award-winning music show hosted by Bob Dylan, "Theme Time Radio Hour," is wrapping-up its first season today with a special two-hour episode, and will return with all-new episodes in September.

In its second season, fans of "Theme Time Radio Hour" can expect to hear contributions from more special guests (including Ellen Barkin, whose sultry voice has heralded the start of each episode since it debuted about a year ago).

Also for the show's first-anniversary on May 3rd, XM will air a "Theme Time Radio Hour" marathon broadcasting every episode from the first season of Dylan's show back-to-back. The "Theme Time" marathon kicks off May 26th at 6pm ET on The Village (ch 15) and will air during Memorial Day weekend.