The car Samantha Carter drives is a 1961 Volvo P1800.
First episode with Eric Breker as Colonel Reynolds, now a senior officer at Stargate Command, a recurring role Breker will keep for the rest of the series. The character was seen earlier as a Major working at Area 51.
Orlin gives Major Carter an emerald saying that it represents her birth month. That means that Samantha Carter was born in May.