What does RKO stand for in “RKO Pictures”?

RKO in Event abbreviation meaning described here What does RKO mean in Event? What does RKO stand for Event?

4 Reasons why the RKO is the best finisher in pro wrestling #wwe #rko #ranking

what is sequence number on woolworths store card RKO ˌɑː keɪ ˈəʊ ˌɑːr keɪ ˈəʊ

what is a car bumper RKO ; RKO, Relativistic Klystron Oscillator ; RKO, Rural King Ohio ; RKO, Russell K Osgood ; RKO, Randys Knock Out