From sudden death to a flash of flesh, get ready to relive those super-surprising events that made stunned viewers say, "I can't believe what I just saw!" Get a taste of the 10 biggest jaw-droppers, in chronological order, below. Then see the full list in order in the Dec. 5 issue of TV Guide magazine and tune in to TV Land at 10 pm/ET, Dec. 5-9, for an in-depth look at The 100 Most Unexpected TV Moments.

The Who Blows Up on the Smothers Brothers (Sept. 17, 1967)
The Who wanted to finish with a bang after its U.S. performance of "My Generation" on the Smothers Brothers Comedy Hour, but when too many explosives were inadvertently put inside Keith Moon's drums, some band members nearly died before they got old. "I don't remember much about it," says guitarist Pete Townshend. "I was kind of in shock."

The Heidi Bowl (Nov. 17, 1968)
NBC cut away from a New York Jets-Oakland Raiders game that was running long. Why? To allow the TV-movie Heidi to start on time at 7 pm/ET. While the goat-herding girl traipsed through the Alps, Oakland scored two touchdowns in the final 65 seconds to win. Says Jennifer Edwards, who played Heidi, "My gravestone is gonna say, 'She was a great moment in sports.'"

A Dallas Dream (May 16, 1986)
How in Southfork's sake did the Dallas folks explain the resurrection of Bobby Ewing (Patrick Duffy) one year after his death? It took Bobby's wife, Pam (Victoria Principal), discovering him in the shower — hot and unbothered — to establish that the entire previous season had all been pretty Pam's dream. After the show, an incredulous nation rose from couches wondering, "Huh?"

The St. Elsewhere Finale (May 25, 1988)
This offbeat hospital drama ended its run by shaking everything up: The series was but a dream of Dr. Donald Westphall's autistic son, who in the show's final seconds held a snow globe containing a model of the Boston hospital. Snow kidding. "It sent a shock wave through the entire viewing community," says St. Elsewhere costar Howie Mandel.

The Newhart Finale (May 21, 1990)
TV legend Bob Newhart parodies — and perfects — the "dream sequence" finale when his entire Newhart series turns out to be the dream of Dr. Bob Hartley, his old Bob Newhart Show character. When a stunned Bob wakes up his first TV wife, Emily (Suzanne Pleshette), it's pure double-take genius. Says Newhart costar Tom Poston, "It has proven to be one of the great endings of all time."

Tonya Harding's Olympic Meltdown (Feb. 25, 1994)
Months before the Lillehammer Olympic games, Tonya Harding had reportedly paid a friend to try to break the leg of her rival, Nancy Kerrigan. But at the games, Harding's skate expectations were dashed when a last-minute loose lace turned her from lutzing contender to klutzy pretender.

Sudden Death on Seinfeld (May 16, 1996)
Sure, it's a show about "nothing," but is nothing sacred? When George's fiancée, Susan (Heidi Swedberg), died from licking toxic glue on the cheap envelopes he forced her to buy for their wedding invitations, it was Seinfeld at its black comic best. George never cared a lick for Susan, anyhow.

Tyson Bites Holyfield (June 28, 1997)
After repeated head butts from Evander Holyfield in their heavyweight title rematch, Mike Tyson put his career where his mouth was, taking not one but two bites of Holyfield's right ear before the fight was called. "It was such a shock," Holyfield says of Tyson's aural fixation. Recalls actor Bryan Callen (Fat Actress), "The look on Tyson's face was true madness." Eerie, even.

The Dean Scream (Jan. 19, 2004)
Why did one comical scream meant to rally his supporters after finishing third in the Iowa caucus turn former Vermont governor Howard Dean from Democratic hope to enigmatic dope? Well, TV audiences found it weird ("the scream of a wounded beast," says California pol Tom Hayden) and it sounded anything but presidential. What the yell?

Janet Jackson's Wardrobe Malfunction (Feb. 1, 2004)
Never mind those erectile dysfunction commercials: After Janet Jackson's sudden exposure on the Super Bowl XXXVIII halftime show, everyone from outraged parents to Laura Bush to the FCC threw the red flag. While the moment became the stuff of late-night jokes and instant-replay legend, its effect still lingers. Says Family Guy's Alex Borstein, "[Janet] changed censorship."