1. Larry ("Buster") Crabbe played both roles in film serials in the 1930s.

2. One fifth-season episode, "The Inner Light", was awarded a Hugo in 1993.

3. The word was almost certainly coined by Bruce Bethke in his story "Cyberpunk" (1983 AMZ).

4. Asimov began publishing sf with "Marooned off Vesta" for Amazing Stories in 1939.