With Bart Allen returning to Smallville tonight—alongside Cyborg, Green Arrow, and Aquaman—I find myself wondering about the best way to hang onto just a few episodes. Last night I went looking for my tape of “Run,” the first episode in which he appeared, and I couldn’t find it.

I have no interest in buying full seasons of Smallville, but I’d like to have copies of the two episodes with Bart (partly for character research, partly for completism). Warner Bros. has no reason to release individual episode DVDs, but downloadable episodes (as in iTunes) might be an option.

Another possibility: themed collections. There have been enough episodes guest-starring other DC heroes that WB could do something similar to Buffy‘s Slayer Collection, or The Simpsons “Treehouse of Horror” set. A single disc featuring, let’s say, the Flash, Cyborg, and Aquaman episodes (Green Arrow might need his own disc), followed by tonight’s big team-up, “Justice.”

Hey, I’d buy it.