Seasoned actor Aamir Khan, known for portraying versatile characters in films, says playing half male and half female in an ad was one of the most difficult tasks he had ever done.

"It was one of the most difficult tasks to play a male as well as a female in the TataSky ad. But it was a challenge for me and I accepted it. I am very happy with the output, " said Aamir who is the brand ambassador of TataSky.

Aamir was speaking at the announcement of TataSky's new interactive feature TataSky + here Tuesday.

Aamir refused to divulge any details about the next ad for TataSky, saying: "You will get to see it whenever it comes. But it will be an interesting one."

On being asked about his favourite programmes on television, Aamir said he prefers to watch various sitcoms, news and documentaries.

"I also watch History Channel because it is very informative. Besides, I also like 'Takashi's Castle' because it is my daughter's favourite."