""I missed it terribly," said Bell, 68, whose weeknight show will air live from 10 p.m. to 1 a.m. ET. Sirius is building a studio at Bell's rural Nevada home where he will work.

A Sirius representative contacted Bell through social media a few months ago, leading to the formation of his show, "Art Bell's Dark Matter." He'll talk about things like UFOs, ghosts, near-death experiences and weird aspects of science. He'll do interviews and take calls from viewers. Scott Greenstein, Sirius XM president and chief content officer, said the show will be "uncensored, unrestricted, uncluttered and utterly unique."