'Big Brother' Season 23 Premiere Jumps 10% in Viewers From Last Summer's Start

But Tampa Bay Lightning's Stanley Cup win on NBC steals some thunder

"Big Brother" Season 23 got off to a pretty big start, relatively speaking, on Wednesday. The CBS reality competition premiered to 10% more viewers this summer than last, and stayed steady among adults 18-49. The Tampa Bay Lightning securing their second-straight Stanley Cup last night on NBC got a bit in the way, however.

Due to the nature of live sports, the below Nielsen numbers for NBC should be considered subject to significant adjustment. For now...

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Tony Maglio

TV Editor • tony.maglio@thewrap.com • Twitter: @tonymaglio