Example of a superkey. Suppose we have a table that holds all the managers in a company, and that table is called Managers. The table has columns called ManagerID, Name, Title, and DepartmentID. Every manager has his/her own ManagerID, so that value is always unique in each and every row.
Channel 583 (HD) Channel 83 (SD) Fox Sports 1 (FS1) is an American sports-oriented cable and satellite television channel that is owned by the Fox Sports Media Group, a unit of the Fox Entertainment Group division of 21st Century Fox.
It's also worth noting that Fox Sports 1's average viewership for MLS so far this season is 219,000. That is a 54 percent increase on NBCSN's 2014 average of 142,000, which was the highest in its three years broadcasting MLS. The consistent 7 p.m. Sunday time slot is surely working in FS1's favor. NBCSN started games as late as 11:20 p.m. at times, and it did so not just on weekends.