I keep hearing people talking about Game of Thrones - what is it??  I've never heard of it before!
Oh man, really? Well, it's HBO's adaptation of George R. R. Martin's fantasy series, "A Song of Ice and Fire." The show gets its name from the title of the first book
Ohhh....I only read mystery books, so that's probably why I've never heard of it.  By the way people talk, I guess it's pretty good then?
Yes, it's quite good. The main story arc most people care about has to do with the legendary creatures from the north, called White Walkers.
That's interesting - what other characters are there?
Well, I'll have to assume you don't mind spoilers. The main characters are Jon Snow, Daenerys Targaryen, and Tyrion Lannister, but there are many, many others.
How long has it been on HBO?
Since 2011, and the final season will air probably in early spring of 2019. I can't wait!
Maybe I should check it out - it sounds like it's quite popular!
It's hugely popular! David Benioff and Dan Weiss have done a great job with it for the most part!