Katy Brand's Big Ass Show

I've always given this the steer on the basis that it was, as one unnamed colleague put it, "possibly the worst thing on TV... ever", but, recommissioned for its third series, it tempted me. It's not, as it happens, the worst thing on TV, far from it, in fact, though judging by a few YouTube clips it has improved considerably. Juvenile the opening Lady Gaga pastiche may have been but I couldn't help but giggle at bits of it ("you keep on asking how/ this lady's so big/ then you remember it's because I'm wearing no pants/ when I'm on the bus"). Ditto, the Queen's motivational speech to the other royals ("I always give it 110 per cent - that's why I'm on top"), and the east London kid preparing for the Olympics by eating Olympic fries. It may not be Monty Python, but it ain't that bad.

Katy Brand is back on ITV2 for a third series of sketches, and though she's shifting things around a bit - a "fine" Jennifer Aniston is the new "normal" Kate Winslet - she still has a canny ability to dismantle the silliness of celebrity.

The un-subtle sketch show (yes, that title is a useful advert) is back for an astonishing third series. Although the targets are obvious, the musical spoofs are far and away the best thing here, from the calculated wardrobe malfunctions of Lady Gaga to Kanye West's overuse of Auto-Tune ("I got it half-price/I bought it off Posh Spice"). And it's all pretty quickfire, which is a blessing because many of the situations feel as if they were knocked together in a few minutes. Still, you might enjoy Lily Allen: paramedic, or Bea and Eugenie hosting How Clean Is Your Palace?

She may be as good at impressions as Jordan is at avoiding cameras, but that's missing the point of Katy's celebrity-spearing sketch show. What Miss Brand excels at is taking tabloid-taunting stars and popping them in totally bizarre, yet utterly logical, situations. This time round, look out for Lady GaGa, Jennifer Aniston, and, er, Chris Martin out of Coldplay.

Time for series three of this sketch series and Ms Brand is still failing to wow us. None of it is terribly original but at least the music parodies are halfway fun: Kanye West espouses the virtues of Autotune, and Lady Gaga sings about her own pointlessness.