Looks like the easiest way for TV executives to boost ratings on their TV shows is to find the youngest girl they can and make her pregnant.

That's what has happened with Jamie Lynn Spears' Nickelodeon show Zoey 101. The just-broadcast season finale of Zoey 101 - the first episode since Jamie Lynn Spears announced her pregnancy - recorded viewing figures twice as high as usual.

Special mention should be given to the lucrative Dirty Old Middle-Aged Men demographic, which we imagine has gone sky high since Jamie Lynn Spears revealed that she was sexually active.

Before she decided to make the leap into becoming a professional pregnant schoolgirl, Jamie Lynn Spears was best known for her Nickelodeon TV show Zoey 101.

OK, that's not exactly right - Jamie Lynn Spears was best known for being Britney Spears' sister, then for being in a film where she played Britney Spears' sister, then for being Britney Spears' sister in a TV show about Britney Spears, then for being Kevin Federline's sister-in-law and then for her Nickelodeon TV show Zoey 101. Not that any of that means much any more, because it's been reported that Nickelodeon has dropped Zoey 101 thanks to Jamie Lynn's pregnancy. Heaven knows why, because we always thought that children's TV badly needed a teen sitcom about a schoolgirl with postnatal depression so severe that she routinely fantasises about dropping it out of a window. Or something.