Watch: Fox's Live ‘Cosmos’ Q&A With Neil DeGrasse Tyson and Seth MacFarlane (Video)

The host and producers will gather at 6 p.m. PT at the Cosmos Pavillion at the Greek Theatre in L.A.

“Cosmos: A Space Time Odyssey” premieres Sunday at 9/8c on multiple U.S. Fox networks, including FOX and National Geographic Channel.

Also read: ‘Cosmos’ Original Series Gets Nat Geo Marathon Prior to Reboot Premiere

Also read: Fox's ‘Cosmos: A Spacetime Odyssey’ to Debut on 10 U.S. Channels Simultaneously

Also read: Seth MacFarlane on ‘Dads’ vs. ‘Cosmos’ — With a Side of ‘F— You’