"The Aquanauts" (the preferable title) was a refreshing underwater TV by Ivan Tors ('God' of underwater filming productions) from the early 60's starring Keith Larsen and Jeremy Slate (Ron Ely - TV's 1960's Tarzan was Larsen's replacement in the later season) as a buddy diver/salvage team. I do not know why the series changed names in mid-stream (pun intended), but I do prefer the original title - I suppose that Malibu was used (being a more 'cool' and familiar name to attract the boating/surfing viewing audience). IMDb lists the series as filmed in Black & White, however I could almost swear that I remember this program being broadcast in Color. Can anyone out there supply any further information? Not much data is available on this series, but the "TV-TOME" website offers an interesting list of 'Guest Stars' in their episode guide pages (check it out). I was always a big Jeremy Slate fan and it was nice to see him playing the 'good guy' for a change. There were very few 'underwater' series (most of the best (enjoyable) TV series ever produced were from the 60's and into the early 70's. If you love 'tropical' and/or 'underwater/sea' themes I would highly recommend the following TV series (if any of them can ever be found anywhere):Sea Hunt, The Aquanauts, Adventures In Paradise, Wackiest Ship in the Army, Hawaii Five-O, Hawaiian Eye, Surfside Six...just to name but a select few. There were some other unusually themed series which were quite unique and fun as well: Whirlybirds, Route 66, Ripcord, The Everglades, Riverboat...and more. Have fun viewing and write your video companies to let them know what you would like to see on DVD! Sit back, dunk a great 'fun-derwater' adventure program (or series) into your DVD player, spit into your dive mask, slap a board to your wetsuit, gas-up your woody (no, not the 'woody' in your trousers...it's a beach cruiser!) and head on down the PCH! Aloha, Dudes!