In the DVD set The William Castle Film Collection, this episode is included as a special feature behind The Tingler (1959).
When Fred Colby (John Astin) goes into the studio's screening room to investigate strange noises, the film playing on the screen is Hammer Film's "Dracula Has Risen from the Grave". Later when he's home when Fred Colby interrupts Linda Colby (Patty Duke Astin) while she's ironing and watching television she says, "It's one of those old movies your studio made" but what she's actually watching is Hammer Film's "Frankenstein Must Be Destroyed".