Hulu announced today that it has entered into a multi-year licensing agreement with CBS, which will see the network’s library of TV programming become available on Hulu Plus in January.

Users will gain access to over 2,600 episodes of shows like Medium, Numb3rs, CSI Miami, Star Trek, I Love Lucy, The Twilight Zone, etc.

“We remain ever-focused on building a differentiated and high-value service for our customers (users, content owners and advertisers) and are proud that we have built Hulu Plus to be the only online video service to offer this type of TV content selection,” said Hulu SVP of Content, Andy Forssell.

People will also be able to watch episodes of Entertainment Tonight on Hulu and Hulu Plus the same day they’re broadcast on television, starting today. Select other shows will rotate through the free Hulu.com.

The partnership will reportedly not give Hulu access to other new shows as they air, but the addition of CBS content is still significant for the service, which has already been offering ABC, FOX and NBC content (Hulu is a joint venture among these three providers).