This is £14.99 from HMV (and a possible 11% quidco.com cashback!) and the cheapest elsewhere is about £28 - bargain price I think :)
Set in the 2060s, Gerry Anderson's Fireball XL5 charts the interplanetary adventures of a spacecraft and its crew, handsome blonde pilot Steve Zodiac, the glamorous blonde space doctor Venus, maths genius Matthew "Matt" Mattic, and Robert the Robot. Their mission is to patrol sector 25 of the universe, beyond the solar system. This DVD release features all 39 episodes.