When they showed an update to the programme recently, I almost jumped six feet in the air when right at the end, a large close-up of me was shown for at least five seconds.

I was standing in the school hall wearing a white and orange anorak and looking absolutely terrified.

Whether I was more scared of the thought of big school, or because I was wearing such a ridiculous coat, is debatable, but it still made me feel famous nevertheless.

My daughter wasn't impressed though. 'When I showed her a tape of it all she had to say was: "Gosh mummy, when you were little you looked just like a boy." Charming.

Apart from seeing myself on screen, what shocked me most was seeing the teachers again. Teachers who had looked so old when I was there, suddenly looked too young to have even graduated let alone be teaching. It made me wonder how old I look to the young children in my yoga group.

Surely I can't look any older than their big sister? Or maybe a very young mother at a push.

I like to think that I'm still pretty trendy, and I always chat to them about the latest computer games and stuff, so there's no way I could possibly look old to them – is there?

Unfortunately I got my answer the very next day when an eight-year-old girl in my class asked if I used to play with Brats dolls when I was little.

When I told her that we didn't have Brats in those days, the whole class gasped with horror. They sat open-mouthed for a few seconds before finally one of the girls said: "So if you didn't have Brats dolls does that mean that you were born in the days when everything was black and white?"

Once I had picked myself up off the floor, I responded that no, I didn't come from the black and white days – just the 1970s.

"The 1970s" they all said at once. "Then that makes you about 50 doesn't it?"

Fifty indeed. So much for feeling like a trendy youngster – maybe I should just invest in a blue rinse and Zimmer frame and be done with it!