Final answer:
The most watched College Tournament on TV nationwide each year is the NCAA Men's Basketball Tournament, also known as March Madness.
Step-by-step explanation:
The most watched College Tournament on TV nationwide each year is the NCAA Men's Basketball Tournament, also known as March Madness. This tournament features 68 teams competing in a single-elimination format to determine the national champion. It is highly popular among sports fans, with millions of viewers tuning in to watch the games.
March Madness is known for its upsets, buzzer-beater finishes, and the excitement it generates among basketball enthusiasts. It is a major event in American sports culture and attracts a wide audience, making it the most-watched college tournament on TV each year.
Some other popular college tournaments on TV include the College Football Playoff and the College World Series.