Interested in the latest TV on DVD reviews? DVD Talk has you covered! This week's notable entries include: The Defenders: Season 1 - starring E.G. Marshall and Robert Reed as a father-son team of defense attorneys, this show displays the intelligence and idealism of the best early television drama, even though it hit the airwaves in 1961; Drunk History: Season Four - the program hasn't lost any steam… the result is a show that gets plenty of laughs, but which will let you learn something you didn't already know; and Sabrina Down Under - based on the TV show from the 90’s, this 1999 made-for-TV movie is a tale of witches and mermen from the sea… it tries to liven things up by including an ecological message and some intrigue but it’s largely a misfire. Want more?  Check out all of the TV on DVD reviews in the DVD Talk database.