Has a College Football game ever ended 68-14?
Exactly once. On October 9, 1993, UCLA beat BYU 68-14, and no College Football game before or since has ended that way. When it happened it was a scorigami, the first 68-14 in league history.
That makes 68-14 the 1819th most common final score out of 2,215 that have ever occurred in College Football. One point away, 69-14 has happened 8 times and 68-15 has happened never.