Columbo (character) he is visiting them. "Étude in Black" (1972) marked the first appearance of the lieutenant's basset hound, named "Dog". "Dog" came to be an occasional regular character in the films. Columbo considered names like "Fido", "Munch" and "Beethoven" but ultimately settled on "Dog". In "Sex and the Married Detective", Columbo is put on the spot when he is asked to play the tuba. Reluctantly he agrees, only to demonstrate great proficiency. He subsequently claimed that at school, the tuba was the only instrument left. In several episodes, Columbo is seen eating a breakfast of a boiled egg, usually while investigating
Columbo (character) church, volunteering at the hospital, watching her sister's children and walking the dog five times a day. He mentions that she has a sister named Ruth and later while talking with his wife on the phone he refers also to her having another sister, Rita. This episode teases the audience as to whether or not Mrs. Columbo has actually been murdered and by featuring prominently displayed photographs of Mrs. Columbo, apparently finally disclosing her appearance to viewers. However, the photos are revealed to be of one of his wife's sisters, as he informs the killer at the end of the