Although the ratings for How I Met Your Mother haven't been bad for CBS, it seems they are trying to drum up some buzz any way they can. The Britney appearance did bolster Mother's Nielsen ratings significantly, particularly in the 18-49 age demographic.
Between the stories about how Neil Patrick Harris didn't think the show should have Britney as a guest star -- which he subsequently backpedaled on, it is the kind of news that reeks of desperation, but definitely in a more productive manner than the desperate antics of The CW network with Gossip Girl.
How I Met Your Mother is produced by FOX who wouldn't confirm the appearance. Based on the most recent Nielsen ratings for the show, it would appear Spears value is an increase of a over 1% of all viewers aged 18-49. Without Britney, HIMYM got a 3.4 rating in the 18-49 demographic last week. With Britney, it got a 4.5 rating in that age bracket.
That's a pretty big deal ratings and we imagine if the story is true, Britney will be paid more this time than she was last time.