This video features double panel knit on the Knifty Knitter brand long blue loom. It shows a knitter how to remove the knit, using a crochet hook, to create a tight edge.

Using any crochet hook large enough to hold both loops, begin on the end of the loom opposite the working yarn.
Place the first loop on the hook.
Following the pat of the yarn, place the next loop on the hook and gently pull it through the first loop.
The loop remaining on the crochet hook is the 2nd loop. Place the 3rd loop on the hook and gently pull it through loop 2.
Continue until you reach the end of the Knifty Knitter loom. Pull the working yarn through the last loop and tie off with the working yarn.