CREATE TABLE table_70548 ("Week" FLOAT, "Date" TEXT, "Opponent" TEXT, "Result" TEXT, "Game site" TEXT, "Record" TEXT, "GameCenter" TEXT, "TV Time" TEXT, "Attendance" TEXT)

Name the gamecenter with attendance of 78,551
SELECT "GameCenter" FROM table_70548 WHERE "Attendance" = '78,551'
SELECT "GameCenter" FROM "table_70548" WHERE "Attendance" = '78,551'