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I used to fix tube radios and teevee sets for pocket money. Most of the time the fix was new tubes or some spraying with contact cleaner, the occasional electrolytic. I don't recall many passive failures. Yoke coils would fail sometimes, flybacks less.
My uncle Sheldon, who first taught me electronics, had a TV repair shop. He was a real rascal. He'd tell people they needed a new picture tube, take the set into the shop for a week or two, Windex the CRT and the cover glass, and charge $100. He always worked with a Dixie beer in one hand... had them delivered by the crate.
John