Joel McHale didn't reprise his voice as the new version of DVD (as HD DVD), in this episode HD DVD is being voiced by Trevor DeVall instead.
When the crew is approaching Planet Streaming, Skips says, "I've got a bad feeling about this." This is a classic line that Luke Skywalker says in A New Hope (1977). Both Skips and Luke are played by Mark Hamill.
3 actors who appeared on the show "Community" (Keith David, Yevette Nichole Brown, Gillian Jacobs) appear in this episode
The Seer breaks the fourth wall talking about events of the past, and showing the scenes on the security cameras. That is maybe an old fans review about the show through the years. With this being one of the last episodes, this could be the show's way addressing its eventual end.