In  Fibber McGee and Molly 9 Dec 1941, it starts with the latest WWII news.

In The Great Guildersleeve 7 Dec 1941, Pearl Harbor Day, the show is interrupted with Pearl Harbor bulletins.

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Fibber McGee and Molly (Jim and Marian Jordon)
(Johnson's Wax Program)

Fibber McGee and Molly was one of the earliest radio comedies to use regular characters, nearly all of whom had recurring phrases and running gags almost equal to those of the stars. These included:

• Throckmorton P. Gildersleeve (the pompous next-door neighbor). Gildersleeve spun off his own show from here.
• The Old-Timer always tells a joke and starts it with "But that ain't the way I heared it!".
• Teeny, or "Little Girl" (a little girl from across the street who visits with the McGees on eash show). Marion Jordon does the voice.
• Mayor LaTrivia, a name inspired by New York's Mayor LaGuardia, always is driven to confusion by the McGees to the point all he can do is sputter. Played by Gayle Gordon.
• Billy Mills and his Orchestra plays a musical interlude.
• Dr. Gamble, a doctor, drops by and trades insults with Fibber.
• Abigail Uppington - a snooty society woman.
• Mr. Wallace Wimple, a hen-pecked husband constantly dominated by "Sweetieface," his "big ol' wife" tells a joke or two .
• Myrtle, "Mert", Each time Fibber picks up the phone he says, "Oh, is that you, Mert? How's every little thing?
• Boomer - Played by W. C. Fields. Boomer comes in and lets slip several little clues about the illegal activites he is involved in. He looks through his pockets and never finds what he is looking for but comments on everything else he finds, then leaves.

And the most famous recurring gag - the overstuffed closet! This gag is typically pulled only infrequently - why it was so famous I don't know

One more interesting thing - What does Fibber do for a job? He apparently doesn't work and, while they aren't rich, the do have money from somewhere.

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Dragnet

Jack Webb started his career in broadcasting as an announcer in 1945. Starting in 1946, Jack starred in Pat Novak for Hire, a private-eye drama that featured "hard-boiled" terminology and phrases that put it somewhere between comedy, camp, and drama. For example, ""That's what the sign out in front of my office says -- Pat Novak, for hire. That's the only way to make a living down on the waterfront, because around here a set of morals won't cause any more stir than Mother's Day at an orphanage." Or "“That’s what the sign out in front of my office says. Pat Novak for hire. Oh, there are a lot of ways to put it, but it’s easier if you let your slip show right from the beginning.”

He had lead roles in Jeff Regan, Investigator, and Johnny Modero, Pier 23, also private-eye dramas.

In 1948, Webb had a role in a movie "He Walked by Night", a police drama inspired by the murder of a Los Angeles policeman. He took this idea and adapted it to a radio show in which a no-nonsense, unglorified, true story would be told. would allow people to understand the life of a policeman a little better. Webb was finatic about making it realistic. He attended a police academy to learn the jargon, rode with officers, conducted police interviews, etc

Webb was the star, producer and directory of the show. His efforts to achieve realizim was shown in the sound effects. Most shows needed only two sound effects experts. Dragnet needed five. Jack made sure the exact number of footsteps from room-to-room in LAPD's headquarters was used. He made sure the sound of the phone ringing was exactly the same as the ones in police HQs.

Despite his reputation, he wasn't above bending the rules, according to one "Dragnet" technical advisor who pointed out that several circumstances in one episode were extremely unlikely. "You know that, and now I know that. But that little old lady in Kansas will never know the difference," Webb said.

The Grand Ole Opry was originally known as the WSM Barn Dance, and its inaugural broadcast was made from that station’s small fifth floor Studio A on November 28, 1925. "Uncle" Jimmy Thompson, who claimed he could "fiddle the bugs off a tater vine," was the initial performer, and the cast included Dr. Humphrey Bate and his daughter Alcyone, the Crook Brothers, and Kirk McGee.

By the time the show moved to Studio B of WSM, still in the National Life & Accident Insurance Building at 7th Avenue North and Union Street, its name had been changed from the WSM Barn Dance to the Grand Ole Opry. The change reportedly came about in an accidental way, the result of an ad lib by announcer George D. Hay, who called himself "The Solom Old Judge," and who had originated the National Barn Dance on WLS in Chicago in 1924. Apparently, the WSM Barn Dance came on the air immediately after a broadcast of the NBC Music Appreciation Hour, conducted by Dr. Walter Damrosch. Hay opened the program by saying: "For the past hour, you have been listening to Grand Opera. Now we will present Grand Ole Opry!" The name stuck, and in succeeding years, as the live audience grew, the program moved, first to a newly built studio that accommodated about 500, then to the Hillsboro Theatre, and East Nashville Tabernacle, and later to the auditorium of the war memorial, which seated about 1,200.