Microsoft (NASDAQ: MSFT) has launched a new online service in 20 countries that will allow users to watch video clips at the same time as a network of friends on Windows Live Messenger.

The new service called Messenger TV will offer a range of clips on MSN Video, including MTV shows and music clips from providers such as Sony BMG.

The firm hopes the ability to watch clips with friends on different computers will create a new social experience and attract users who already spend hours on social networks.

"Online video has exploded in popularity over the last year, but to date it has been something people watch on their own. Messenger TV is set to change all that," said John Mangelaars, vice president, EMEA, of consumer and online for Microsoft.

"Watching video online can now be a social experience, as people watch videos together, make comments and share reactions."

The service will launch in 20 countries, including New Zealand, Australia, Singapore, Brazil, Canada and Mexico, as well as many in Europe. It's not scheduled to launch in the United States, however.