Sarah Parish has confessed she enjoyed poking fun at the BBC on new mockumentary W1A.

The Cutting It star joins Twenty Twelve stars Hugh Bonneville and Jessica Hynes in the follow-up to the BBC comedy about organising the London Olympics, which sees Bonneville's character Ian Fletcher now working for the BBC.

Sarah, who plays Anna Rampton, Head of Output, laughed: "I loved it, it's great adapting to a different world as an actor, it's a lot of fun. And as an actor, I do a lot of work at the BBC so it's nice to poke a little bit of fun at the BBC in a very nice way. It's quite rewarding."

But she added: "I don't think it's going to do any harm. It's a little love story that we're giving them, we're not slagging them off, we're just gently poking."

The series was filmed on location at Broadcasting House in London, and Sarah joked she wasn't sure who were extras for the show and who were real BBC staff.

She said: "Filming in the BBC building has been brilliant, because it just gets you into that feel and character straight away.

"I look around and never know who's in the programme now!

"They kind of look at us in a bit of an odd way because they know what we're doing - we're filming a satire about them, so they're probably a little bit suspicious. But they've been very accommodating."

And the actress admitted the corporate jargon her character uses in the show was all too familiar to her.

Sarah said: "Some of the things we say in the meeting scenes I have heard said at meetings. And when you hear it in meetings you think, I don't even know what it means, I don't think it means anything at all - and of course it doesn't mean anything at all.

"Those meetings that go on for hours and hours and nothing's ever resolved, and yards and yards of red tape everywhere. It's very recognisable."