How excited am I about Learners (BBC One, Sunday, 9pm)? Too excited. That's how excited I am about Learners. And with good reason, I'd say, as it features two of my favourite telly people: Mr. David Tennant and Mrs. Jessica Hynes (nee Stevenson, of course). Now, Tennant I could wax lyrical about all day (Casanova, Blackpool, Who, the suit, the hair, the glasses...) and someday I'm sure I'll do precisely that - or at least do a 'Why I Love' post about him - but for now I shall concentrate on Hynes.

Even if Hynes decided, today, that the heady world of TV was just too much for her and gave it all up, then she would have already done more than enough to make her mark on the British comedy landscape. By appearing in The Royle Family, and co-creating Spaced, Hynes has involved herself in two of the best sit-coms of the last twenty years - possibly ever.

In The Royle Family, you'll remember, Hynes played next door neighbour Cheryl Carroll who lurched from one unsuccessful diet to another. Hynes managed to make sure, however, that Cheryl was as much a sympathetic, warm and exceedingly kind character as she was a figure of fun, and, in amongst all the dramatic and heart-wrenching goings-on of The Queen Of Sheba, it was a delight to have it hinted that Cheryl was finally to find true happiness with the lovable Twiggy.

And so we come to Spaced, quite possibly my favourite TV show ever, and certainly the one I have watched and re-watched most often. Hynes worked with Simon Pegg and Spaced director Edgar Wright in the mid nineties, on a Paramount Comedy series called Asylum (along with Norman Lovett and the Mighty Boosh's Julian Barratt) but it was their Channel 4 show which really showed off their combined talent. Daisy Steiner is a brilliant creation (work-shy and ever so slightly irritating, but ultimately as loyal as they come) and Hynes should be thanked and praised for bringing this character and show into our homes.

And if two iconic shows isn't enough, Hynes decided she would turn her hand to Doctor Who as well. In the gorgeous two-parter Human Nature and The Family Of Blood Hynes got to show off her dramatic acting skills, because her character, Matron Joan, was certainly tricky to pull off. On one hand, we had to understand why the human Doctor would fall for her, but on the other hand we're never going to fully connect with someone who is pulling the Doctor away from his companion, and his 'real' life. Hynes, naturally, walked this line with apparent ease.

You'll notice that I've skipped over the unfortunate BBC One sit-com According To Bex. I can't pretend that this was funny, but with Pegg and Wright off making hugely successful movies, we'll just put it down to a little post-Spaced crash. Even in this series, though, Hynes own comedic talent was evident, it's just that vehicle was undeniably... well, crap.

There's plenty to make up for it, though. Not just The Royle Family, Spaced and Doctor Who, but also the improvised Tomorrow La Scala!, cameos in everything from Black Books to Miss Marple, and several film roles. And on Sunday there's Learners, a feature length comedy-drama starring herself and David Tennant and written by her own fair hand. Expect laughs, true pathos and, above all, warmth.

Set The Video: Learners, BBC One, Sunday 11 November, 9pm