Apple has indeed been talking with "a few large cable operators" about a new TV product, says AllThingsD. The information comes from anonymous sources, reached in response to a recent investor memo from Jefferies & Co. analyst James Kisner. Kisner claims that at least one big cable operator is running tests to determine if it can handle the bandwidth an Apple HDTV might require. He suggests that this could point to "an imminent launch," but AllThingsD disputes the claim.