NBCUniversal's coverage of the Olympics across all its networks comprised the top seven TV shows mentioned on Twitter and Facebook last week, according to Nielsen Social.

The top show in social interactions on those two platforms was the Aug. 19 Olympics coverage, with 4,459,000 uniques (defined by Nielsen as "unique social media accounts that have authored original content related to a linear TV episode or engaged with that content"), followed by the Aug. 21 coverage, with 4,069,000 uniques; Aug. 18, with 3,971,000; Aug. 16 with 3,898,000; Aug. 15 with 3.891,000; Aug. 17 with 3,705,000; and Aug. 20 with 3,144,000.

In fact all of the top 10 TV shows in social media were sports programming, with the UFC PPV fight between Connor McGregor and Nate Diaz Aug. 20 coming in eighth (1,930,000 uniques), followed by a couple of NFL preseason games (Miami v. Dallas at 860,000 and Philadelphia v. Pittsburgh at 452,000).

The top non-sports TV offering in social last week was Freeform's Pretty Little Liars at 260,000 uniques.

Nielsen Social captures Tweets and posts about TV shows from three hours before through three hours after each initial telecast. Unique Tweet authors are defined as having a unique Twitter account that sent "at least one Tweet ascribed to a specific TV episode."

The Summer Olympics in Rio dominated TV-related social media posts on Facebook and Twitter Tuesday night (Aug. 16) with more than 3 million uniques, according to Nielsen Social.

"Uniques" are defined as "social media accounts that have authored original content related to a linear TV episode or engaged with that content."

The Olympics aired was across six networks -- CNBC, MSNBC, NBC, NBC Universo, NBCSN, USA Network -- over several hours, with 3,410,000 Facebook uniques and 488,000 Twitter accounts.

In fact, sports (and faux sports) programming took three of the top four social spots, with the Red Sox and Orioles game on MLB Network placing third, with 102,000 uniques, and WWE Smackdown on USA placing fourth, with 87,000 uniques

Second for the night was Freeform's Pretty Little Liars, with 260,000 uniques.