1-9 and symbols: 48 hours, 1969, 2001, 2010...

[Vern]

1969 (episode)
Through a solar flare, the SG-1 team are propelled back in time to 1969, landing in a top-secret military facility.

2010 (episode)
It's 2010 and a lot has happened in ten years. The Goa'uld have been defeated and diseases such as cancer have been wiped out. Earth's saviors are an alien race known as the Aschen.

2001 (episode)
A new world holds the promise of a potential new ally in the war against the Goa'uld.

48 Hours (episode)
When Teal'c is caught in the Stargate returning from a mission, the SGC must turn to Russia's gate while they try to retrieve him.