Monsterquest Season 3 Begins Tomorrow!!!

However, before that, History is running an all-day Monsterquest marathon. Here is the description:

DEATH OF LOCH NESS

The search for the Loch Ness Monster has captivated the world for decades, but now a startling realization about "Nessie" might shatter this age-old myth. Could the Loch Ness Monster be dead? And do its remains lie hidden at the bottom of the lake? Robert Rines, a world-renowned inventor and explorer has spent much of his life searching for Nessie. He believes he may have seen the remains of this mythical beast while mapping the lake floor with sonar. Now he is on a mission to find scientific evidence to prove it. Rines, who says he saw the creature surface in the lake in 1972, now believes that the images explain the recent decrease in sightings, and that they can only mean only one thing: Nessie is dead. MonsterQuest's search team travels to the lake looking for evidence and deploying the latest technology including remote operating vehicles (ROVs), sonar and specialty cameras as we search for Nessie's remains.

9:00 EST/8:00 Central on History. Check local listings for time and channel.