From JeffreyCombs.com:

TRANSFORMERS: PRIME

Debuting later this fall Hasbro in conjunction with Discovery Communications Inc will release a new Transformers cartoon on a new TV channel currently called Discovery Kids called Transformers: Prime.

Jeffrey Combs will be the voice of Ratchet, a very well known character in the Transformers world. There are 26 episodes scheduled for the first season. Exact details of the show are currently unavailable but will be posted here as soon as they are made available.

Jeffrey is quite thrilled with the opportunity to be cast in the role of Ratchet. He's not able to talk too much about the show this early in the production but did have this quote: "What I can say is that it is an honor and a privilege to be a part of such a prestigious project."