On our weekly TV roundup, it’s a big week for finales. Fargo is wrapping up its first, and possibly only, season on FX. Last night season four of Game of Thrones ended. The much-ballyhooed reality show I Wanna Marry Harry got the ax last week. And, after 30 years... Answer: Alex Trebek. Question: who is the longest-running host of a game show program?