In December 2011 7m TV programmes were watched through the iPlayer on connected TV sets

"New figures released by the BBC today reveal that the increasing ubiquity of Web-enabled TVs, smartphones and tablets are driving the popularity of iPlayer, its flagship online catchup TV and radio service.
In 2011, 1.94 billion TV and radio programme requests were made on iPlayer across all platforms in the UK, its highest number ever. Although computers are still the most popular platform for BBC iPlayer users, accounting for two-thirds of requests last year, December saw a massive spike particularly for mobiles, tablets and connected TVs.
In December alone, 7 million programmes were requested on connected TV sets, an increase of more than 1,000% on the same period the previous year, while smartphones and tablets saw 13 million and 10 million requests made, representing an increase of 163% and 596% respectively. This helped BBC iPlayer register a record-breaking 187 million monthly requests across all platforms in December alone, a 29% increase year-on-year. This reflects both the growing penetration of Internet-enabled devices, and the near-universal availability of BBC iPlayer on those devices."

Source:  The Next Web, 16th January 2012