Buck Rogers in the 25th Century (1979)

S02E12 Testimony of a Traitor

A long-lost videotape surfaces, revealing Buck's connection to the nuclear apocalypse that almost annihilated the planet centuries ago. Commissioner Bergstrom organizes a war crimes tribunal on the Searcher, where Buck risks a death penalty if convicted. In a frantic bid to prove his innocence, Buck consents to undergo another mind probe, but the results appear to substantiate the allegations against him.