Ken Kercheval (Don Bartlett) and Dack Rambo (Alan Marciano) also played brothers-in-law Cliff Barnes and Jack Ewing in Dallas (1978).
This was the third (and final) time Olivia de Havilland and Joseph Cotten would act on-screen together since co-starring in 1964's Hush...Hush, Sweet Charlotte (1964). The other two times were in The Screaming Woman (1972) and Airport '77 (1977).
Aunt Hilly is reading the December 22, 1980 issue of "Time" featuring John Lennon, who had been murdered by Mark David Chapman two weeks earlier, on the cover.
Alejandro Ray also portrayed a character named Carlos Ramirez on The Flying Nun.