I had heard of Dr. Who for decades, but never got interested in it. It was not always broadcast in the areas where I lived.
Last year, kept hearing about Torchwood, so I finally watched a few episodes, liked it, and watched all the episodes. It was similar to Special Unit 2, which I really enjoyed.
After watching Torchwood, I watched a couple of Dr. Who espiodes and finally realized what Dr. Who was about. Now, I am watching the current season of Dr. Who.
Sara Jane is fun to watch, too.
I wish you could have watched Tom Baker's Dr. Who.
Two of my favorite companions of the past are the primitive Leela of the Sevateem and greatly under appreciated young Adric of Alzarius with his badge for mathematical excellence.