Live coverage on Discovery Channel of tightrope walker Nik Wallenda crossing the Grand Canyon, “Skywire Live With Nik Wallenda,” reached a considerable 10.68 million viewers on Sunday from 9:10-10:20 p.m., generating 1.3 million tweets to become the No. 1 most social show across all of broadcast and cable historically. The actual segment featuring Wallenda over the Grand Canyon rose to 13 million viewers. Coupled with 6.25 million viewers for the pre-show from 9-9:10 p.m. and 4.16 million for the debut of lead-out “Naked and Afraid” from 10:20-11:20 p.m., Discovery Channel delivered its fourth best primetime average ever, with the highest rated evening for the network since July 2010. (source: Marc Berman)

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