It’s been 21 years since we met the self-absorbed TV star in this industry satire. But as she comes out of retirement, the results are woeful – and it’s not just the AI scriptValerie Cherish may just be the closest thing America has to its own Alan Partridge. Both narcissists clinging desperately to 1990s showbiz successes (starring in a popular sitcom and hosting a BBC chatshow respectively), they are also two rare examples of comedy characters who have returned sporadically over multiple decades: Steve Coogan’s alter ego made his television debut 32 years ago, while Lisa Kudrow first appeared as Cherish in The Comeback in 2005, returning for a second season nine years later and a third this week.Yet the pair are most alike as prisms through which their creators can satirise the ever-evolving entertainment landscape. Thus far, Partridge’s career has been bookended by sports commentary and self-funded documentaries about mental health; in between we’ve had sendups of local radio, trave...