| Date |
Event |
| January 6 |
A Vicks Formula 44 cough medicine ad premieres, starring Peter Bergman from All My Children, in which he told the viewing audience "I'm not a doctor, but I play one on TV." This phrase, first used in the early 1970s by Robert Young of Marcus Welby, M.D. fame, was subsequently parodied in many pop culture references. |
| January 25 |
HBO's scrambling service begins. |
| January 28 |
NASA's Space Shuttle Challenger spacecraft disintegrates live on CNN. |
| February 9 |
Helen Martin joins the cast of 227, after appearing every episode in the 1985–86 season, replacing Kia Goodwin, who was dropped from the cast after the first season, who portrayed Rose's (Alaina Reed) daughter, Tiffany, before written off the show initially in 1988. |
| February 11 |
Culture Club lead singer Boy George appears on an episode of The A-Team. |
| February 14 |
Frank Zappa appears on an episode of the popular television series Miami Vice. Zappa portrays a crime boss named "Mr. Frankie". |
| February 22 |
In honor of the 20th anniversary of The Monkees premiering on television, MTV broadcasts "Pleasant Valley Sunday", a 22-hour marathon of Monkees episodes. |
| March 9 |
On the soap opera Search for Tomorrow, the entire town of Henderson is washed away in a flood. Lead character Joanne Tourneur's (Mary Stuart) motel is the only structure in town left standing. |
| Spring |
After four seasons, NBC cancels Remington Steele. This announcement results in series star Pierce Brosnan being named the newest actor to play James Bond. As a result of the media frenzy surrounding Brosnan's appointment, as well as the corresponding upswing in Steele's ratings, NBC reverses its decision and announces Steele will return midway through the 1986–87 season. This results in the Bond film producers withdrawing their offer to Brosnan, though he would reacquire the 007 role in 1995. |
| April 3 |
Merv Griffin sells his company, Merv Griffin Enterprises to The Coca-Cola Company for $250,000,000. |
| April 21 |
Geraldo Rivera hosts the live two-hour syndicated special The Mystery of Al Capone's Vault, famously coming up empty-handed. |
| April 27 |
A man calling himself Captain Midnight jams HBO's signal to protest its monthly fee of $12.95. |
| May 10 |
Tommy Lee of Mötley Crüe marries actress Heather Locklear. |
| May 12 |
NBC unveils its new Peacock logo. |
| May 16 |
Bobby Ewing is revealed to be alive and showering in his ex-wife Pam's bathroom in the season finale of Dallas; in the September 26 season premiere, it was shown that the entire 1985–86 season was a dream of hers the night after they agreed to remarry. |
| May 22 |
Cher calls David Letterman an "asshole" on the air during a taping of Late Night with David Letterman. |
| July 18 |
A tornado is broadcast live on KARE TV in Minneapolis when the station's helicopter pilot makes a chance encounter. |
| August 15 |
Rod Roddy becomes permanent announcer on the long-running CBS daytime game show The Price is Right replacing the deceased Johnny Olsen. |
| September 1 |
For one week, CBS Evening News anchor Dan Rather attempts to initiate the use of the word "Courage" as a slogan. The attempt is a failure, and is noticed by other members of the press. |
| Disney Channel, at the time a premium cable network, began broadcasting a 24-hour-a-day schedule. |
| September 8 |
Oprah Winfrey goes national. |
| September 17 |
ABC becomes the second American station to discontinue use of chime intonations at the beginning of telecasts, as the network moves to satellite feed activation. |
| September 27 |
On The Facts of Life, Charlotte Rae leaves the role of Mrs. Garrett (who marries her old friend Bruce Gaines, played by Robert Mandan) and is replaced by Cloris Leachman, who played Beverly Ann Stickle, Mrs. Garrett's sister. |
| October 9 |
The Fox Broadcasting Company becomes the United States' fourth commercial broadcast television network. |
| November 8 |
Dana Carvey, Phil Hartman and Kevin Nealon join Saturday Night Live. |
| November 30 |
The Disney Channel signs off for the last time. From 7 a.m. on December 1, 1986, the channel broadcasts 24 hours a day. |