"Big Six" is, unfortunately, a thing. In terms of the TV deal, it's written in that each broadcaster gets a certain number of "Big Six" games with said sextet defined as Arsenal, Chelsea, Liverpool, Man City, Man U and Tottenham.
There is also a requirement to give each broadcaster a share of "Big Eight" games... this is the aforementioned six plus the best two others based on past two seasons. Can't be arsed to check, but I'd be amazed if that wasn't us and Newcastle.
"Big Seven" isn't a thing. They've clearly just done that to keep Newcastle fans happy, and in doing so deprived themselves of money (Newcastle fans can't bet on Newcastle in a market that excludes Newcastle).
The twats.