As a stamp collector, my eyes naturally focus on these tiny perforated pieces of paper anywhere in the community, or on television. Here I am sharing some cropped screenshots from the Hawaii Five-O television series. Specifically, these are from season four (1971), episode two.
32:11 (32 minutes, 11 seconds into the show)
A box containing several stamps is visible. At least four are the 6¢ dark blue grey Eisenhower stamps. A fifth stamp is upside down, thus limiting our ability to identify it.

32:15 (32 minutes, 15 seconds into the show)
The woman removes a stamp from the box. I cannot definitively determine which stamp she took. It appears to be one of the 6¢ dark blue grey stamps.

32:20 (32 minutes, 20 seconds into the show)
The woman applies an 8¢ deep claret Eisenhower stamp to the envelope.

41:55 (41 minutes, 55 seconds into the show)
The addressed recipient holds the canceled envelope in his hand. It is franked with a 6¢ dark blue grey Eisenhower stamp.

Oops, the stamp's value decreased by 2¢ while in transit.
Context: postal rates increased from 6¢ to 8¢ on 16 May 1971. This episode of Hawaii Five-O originally aired on 21 September 1971.