This episode was shown in Canada (The Movie Network) on 23 January 2006, a couple of weeks before the regular airdate in the US.

Under the Ancient outpost on Terranis, they find a damaged Ancient warship, much like the Aurora, but this one is named the Hippofaralkus. However, Sheppard insists it be named the Orion.

Sheppard: That's the plan?
McKay: That's the plan.
Sheppard: That plan sucks!

Rodney: The long range scanners, that's just what we call them.
Col. Sheppard It's from an old TV show ...

This is a reference to the Star Trek TV show, where this term was first coined.

Col. Sheppard And we're not calling it the Enterprise either!

The USS Enterprise is the name given to a series of starships in the fictional Star Trek universe created by Gene Roddenberry.