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Clicker, which aims to be the TV Guide for Internet television, just launched. We first reviewed Clicker last week when it was still in private beta. The version that went live today features a number of significant improvements to the private beta version. Clicker now indexes 33% more shows than before and indexes over 400,000 full episodes from 7,000 shows. Clicker also now features an improved DVR-like playlist, integration with Facebook Connect and improved search. In addition, Clicker users can now also comment on shows and use a wiki-like feature to contribute information about a given show or episode.

Finding specific online videos from TV networks and independent producers can often be a daunting challenge. Some TV shows are on Hulu, some can only be found as paid downloads on iTunes or Amazon and some are only available for streaming on the network's and producer's own sites.

Clicker wants to change this by making it easier to find shows from TV networks, music videos, and web videos from across the Internet. Clicker is currently in private beta and only available in the US. The company gave us 1000 invites for our readers. Read on to find out how you can get yours.

Comcast sees the writing on the wall: cable-based TV will not survive the next decade. Its value is fast eroding because it can't compete with on-demand, Internet-delivered TV across all screens. Unlike their music counterparts, TV executives have pulled their heads out of the sand in time and are working hard to survive this monumental shift. To do so, however, they need to choose the right battles to fight.