In Cold Lazarus, the situation is somewhat reversed. The setting and basic storyline are, by comparison to Karaoke, quite impersonal. The sci-fi "dystopia" is well done and entertainingly campy, with some real strokes of brilliance (the "Reality or Nothing" terrorists who fight the media's dominance), but it's hardly as personal or unique as a typical Potter drama's set-up.
But ironically, the struggle that Daniel Feeld (now only a head, frozen for four hundred years) faces in Cold Lazarus is far more personal, as he literally loses control of his own life and is forced to re-live his own painful memories, without the ability to edit them or filter them through his own creative processes.
The metaphor is set up for us by Feeld's dying words, which we hear in the first segment: "No biography". While Dennis Potter always drew from his own life to a large degree in his writing, he apparently did not relish the idea of other writers attempting to pick through his real life.
Fortunately for us, though, he was (as always) not nearly as reticent about interpreting or re-casting his own life for us. As a contrast to the sci-fi sequences, he presents us with our final glimpse of childhood in his beloved Forest of Dean, in a series of flashbacks that may even as personal as any of the similar scenes in The Singing Detective.
The first time I saw Cold Lazarus, it didn't really grab me, but since seeing it a second time, its story and ideas have stuck in my brain to a huge degree. As I say, it is truly a fitting "final opus" for one of the most distinctive and creative writers of the 20th century; hopefully one day soon, this work (and many more of Potter's creations) will be available on DVD.