ABC News will air an interview with Apple CEO Tim Cook on World News with Diane Sawyer tomorrow evening to coincide with the thirtieth anniversary of the introduction of the Macintosh (via 9to5Mac). The interview, between ABC's David Muir and Cook, will air tomorrow at 6:30PM Eastern, though a small portion of the interview will preview on Good Morning America. ABC has not shared many details about the interview, but based on the image shown above, the Mac Pro will be a point of discussion. "ABC News Anchor David Muir exclusively interviews Apple CEO Tim Cook on the 30th anniversary of the Macintosh and what is next for the company," ABC says.