Kolchak: The Night Stalker THE KNIGHTLY MURDERS S1 E18 ABC TV March 7, 1975

Kolchak: The Night Stalker THE KNIGHTLY MURDERS S1 E18 ABC TV March 7, 1975
A haunted suit of armor, belonging to a man who swore that his resting place would never be disturbed, slays the people who turned the museum where his armor is located into a disco. Kolchak learns of the murders and seeks out who or what is responsible.