Enjoy The Spirit of ’77 Weekend on SiriusXM’s Grateful Dead Channel. Hear tracks from this landmark concert period throughout Memorial Day Weekend, only on SiriusXM channel 23! Now through June 1, anyone with an unsubscribed satellite radio can hear 60 SiriusXM channels for free, including the Grateful Dead Channel. Just turn it on and start listening. Go to www.siriusxm.com/listenfree for more details.