The Six Million Dollar Man
In 1975, a two-part episode entitled "The Bionic Woman", written for television by Kenneth Johnson, introduced the lead character Jaime Sommers (played by Lindsay Wagner), a professional tennis player who rekindled an old romance with Austin, only to experience a parachuting accident that resulted in her being given bionic parts similar to Austin. Ultimately, her body "rejected" her bionic hardware and she died. The character was very popular, however, and the following season it was revealed that she had actually survived, having been saved by an experimental cryogenic procedure, and she was given her own spin-off series, "The Bionic Woman". This spin-off ran until 1978 when both it and "The Six Million Dollar Man" were simultaneously cancelled, though the two series were on different networks when their final seasons aired.
The Return of the Six Million Dollar Man and the Bionic Woman
Former lovers, both bionically enhanced, Steve Austin and Jaime Sommers have been retired from the OSI for ten years. They have remained out of contact with each other due to the complex history of their relationship. In exposition, its explained that after the two fell in love, Sommers was in a skydiving accident which caused extensive injuries. She was rebuilt with bionics, but her body rejected them ("The Bionic Woman: Part 1 & Part 2"). The experience caused partial amnesia which made her forget her romantic feelings for Steve ("The Return of the Bionic Woman: Part 1 & Part 2"). She later fell in love with fellow OSI agent Chris Williams (as shown in season 3 of "The Bionic Woman"). Steve, not wanting to interfere, refused to go on a mission to aid Chris and Jaime. On that mission, the two became separated and an explosion hit Jaime, which caused a major concussion. She had to be evacuated, which left Chris alone and he was later killed by a sniper. When she recovered from the concussion, all of her memories were restored and her feelings for Steve came into conflict with her love and grief for Chris.