ABC has increased the number of TV shows it is making available to buy through iTunes US.

The company has added ABC series 'Commander in Chief', a popular show which features Geena Davis as the first female President of the United States. ABC now offers 'Desperate Housewives', 'Lost', 'That's So Raven' and 'The Suite Life of Zack and Cody', as well as 'Commander in Chief'.

Statements from other channel heads suggest a raft of new content will debut through iTunes soon. Apple introduced new content from NBC and affiliates the SciFi channel and USA television to iTunes in early December.

These shows included 'Battlestar Galactica' and vintage NBC content, including vintage Hitchcock movies and legendary one-man-and-his-car show, 'Knight Rider'.

Fox Filmed Entertainment co-chairman James Gianopulos recently told the Reuters Media and Advertising Summit that his company would be 'open' to a deal with Apple to distribute its content through the iTunes service.

ESPN/ABC Sports president George Bodenheimer told the same gathering that his firm is 'looking at that now'.

Clear Channel has also confirmed it is speaking with Apple, Microsoft and Yahoo about such deals.