I have watched stargate since the very beginning and i have every box set available. I really enjoyed this episode until they mentioned waiting for general landry to dial in so that they could jump out.
The reason that they got stuck on that planet with "Ernest" was because they couldn't go through an incoming wormhole. Wormhole's only go one way so they had to fashion a lightning rod to get power to the DHD.
Ruined it for me, i hope they stay away from more plotholes like this.