When Henry and Amy have the following exchange; "Henry, I'm glad you like my show," "Yeah, It's good, you should be proud," "So should you." It may be an inside joke to the fact that they both worked together on Battlestar Galactica (2004) too.
The Sonic weapon that Henry refers to is the same prop used for the ARG (Anti-Replicator Gun) from the Stargate universe.
Matty Finochio who plays Zach (the camera man) returns in later series as Virgil St. Pierre.