Comcast Chief Executive Brian Roberts took time out from strategizing over his company’s reported bid to buy NBC Universal to speak at the Web 2.0 Conference in San Francisco on Tuesday. As expected, Roberts declined to comment on any ”specific” deals including NBC. But he did indicate as he has done in the past that content will be an important part of his company’s future and that it is always “prudent” to take a look at opportunities as they come up.

While he remained on message (or is that off message?), Jeff Immelt, his counterpart at NBC Universal’s parent General Electric, was a little more forthcoming, saying the company is considering its options for NBC Universal which could include keeping it.

In this 43 minute interview, Roberts also talked on a range of other topics including the importance of building faster Internet services and gave a demostration of his company’s On Demand Online service which he said will be launching nationally before the end of the year.