Music (of course), history, photography, religion and spiritual subjects, politics (though not lately), baseball, auto racing, humor/comedy, writing, fishing, boating, hiking, etc.
Be sure to check out my band, Project Floyd, at www.myspace.com/projectfloyd. My favorite band is Yes. I mainly listen to Classic/Progressive Rock (Yes, Pink Floyd, Rush, Kansas, Dream Theater, Genesis, Led Zeppelin, The Beatles, The Who, The Moody Blues, Dire Straits, etc.).
This Is Spinal Tap; A Hard Day's Night; The Blues Brothers; most of the Star Trek movies; Pulp Fiction; Office Space; Beavis And Butthead Do America; Apollo 13; October Sky; all of The Godfather movies.
The Prisoner; The Twilight Zone; Star Trek (OS & TNG); The X-Files; Monty Python's Flying Circus; The History Channel; FoxNews (until I can't stand it anymore); Metalocalypse; Beavis And Butthead; Futurama; Family Guy; Harvey Birdman, Attorney At Law; ancient clips of Ernie Kovacs, Steve Allen, Sid Caesar and all other TV pioneers; Looney Tunes; Speed Racer; Saturday Night Live (Original Cast); SCTV.
Pretty much anything by Tom Clancy or Caleb Carr; currently, I'm reading up on the technology of music, which can be an endless list of titles; I recently enjoyed reading several biographies and personal accounts of Classic Rock musicians. Occasionally, I'll read books about UFOs, conspiracy theories and politics, most of which end up in my sci-fi (with various works of Arthur C. Clark) or humor (Monty Python's Big Red Book, which has a BLUE cover, books by Dave Barry, The Far Side series, etc.) piles.
Richard Wright, David Gilmour, Rick Wakeman, Tony Banks, Keith Emerson, Jon Lord, Geddy Lee, John Paul Jones, Paul McCartney, Steve Howe, Chris Squire, Derek Smalls, Viv Savage...