After saving a long-lost group of space explorers ("The Ark in Space"), The Doctor and friends prevent the Sontarans from devastating a rejuvenated Earth ("The Sontaran Experiment"). Also, our friend Erin writes in with a detailed e-mail comparing The Doctor to Sherlock Holmes.

Tom Baker begins his epic run as The Doctor in the four-part story "Robot." Also, make sure to visit http://www.adamwarrock.com.

As the 11th season comes to a close, so does Jon Pertwee's tenure as The Doctor. And you can bet Dan and Mike have plenty to say about "Planet of the Spiders," the season as a whole, and Pertwee's time as The Doctor.

After the TARDIS suffers a power loss, The Doctor and Sarah Jane Smith are trapped on an alien world with savages, Daleks, and a living city ("Death to the Daleks"). Then The Doctor returns to Peladon, where he uncovers a conspiracy while mediating a dispute between the ruling and working classes ("The Monster of Peladon").

Doctor Who begins its 11th season with "The Time Warrior," which introduces both Sarah Jane Smith and the Sontarans! Then in "Invasion of the Dinosaurs," seemingly everyone is in on a conspiracy to rewrite human history.

Closing out the 10th season, the Daleks invade a planet to learn the secrets of invisibility ("Planet of the Daleks"), and, back on Earth, mutated maggots overrun a small town ("The Green Death"). Also, Jo makes her exit from the program. Did the hosts finally come to admire the companion they've been rather cold on? Click it to find out!

In "Carnival of Monsters," The Doctor and Jo are miniaturized and placed in a machine where they must fight for their lives. Then in "Frontier in Space," they're pawns in The Master's plan to destroy two spacefaring races. Also, Dan and Mike speak fondly of Roger Delgado, whose tenure as The Master ended with the latter story.

William Hartnell, Patrick Troughton, and Jon Pertwee all in the same Doctor Who story? Oh yes! It's "The Three Doctors."

The ninth season of Doctor Who sadly ends with a whimper ("The Mutants" and "The Time Monster"), but that doesn't mean the hosts agree on the episodes. Also, Mike becomes flustered while talking about Captain Yates, Dan has something to say about the chicken-suited Kronos, and then there's Cotton. Oh, Cotton.

The Doctor and Jo find themselves helping a young King as he's torn between sticking with traditions and moving his people forward ("The Curse of Peladon"). Then The Master awakens the aquatic cousins of the Silurians in another attempt to destroy mankind ("The Sea Devils").