Yeah, the show would have been really cool if they had an ever increasing supply of capsules and Franks. Did they ever rationalize that when a backstep occurred that Frank and the capsule disappeared from the facility? I can't recall. Or addressed the issue that technically the only person left from the original timeline was Frank. Every time he used the device he was being transported to/creating an alternate timeline.
Disappointed after backtracking through the thread to see this wasn't MST3K related.