Yes, I specifically excluded research reactors and laboratories. There was also a criticality accident that killed one (or maybe two, I forget) at the Oak Ridge Y-12 facility. Those incidents are at least 30 years ago now, all of them.
Yes, I also specifically limited the discussion to LWR reactors. As somebody else mentioned way back in the thread, the Chernobyl reactor did not have a containment building at all in the sense of what we think of--it was simply in a metal-clad building. Such a reactor would never have been built in any of the western nations. The Chernobyl design and the operational misdeeds that lead to the event are prime examples of "how _NOT_ to do it".
While TMI is a "could be", there are no confirmable injuries or deaths in the general public (or in the workforce at the plant, either) around TMI that can be attributed to those releases. In talking w/ a co-worker who spent a great deal of time on site during and immediately after the event (while they were still dealing with the "H bubble" in the SG upper leg), he said his greatest concern was being run over by the teeming hordes of media reporters every time he approached or left the plant. :) I spent the days at the time looking at data from the plant instrumentation and in phone consultations on trying to infer state of the core from the incore instrumentation system which was my area of special expertise.
Overall, hard to refute it's probably the cleanest overall practical and reliable source for large scale electricity central-stateion generation we presently have (or will have for the foreseeable future).
--dpb