Or officially "jumped the shark" and how and why did it come to be:;)
NBC

CBS

ABC

Fox

UPN

The WB

Nickelodeon

MTV

VH1

Comedy Central

BET

TV Land

Nicktoons Network

Nick GaS

USA Network

Cartoon Network

Boomerang

TBS

TNT

The Disney Channel

Toon Disney/Disney XD

Fox Family/ABC Family/Freeform

Animal Planet

The Hub Network/Discovery Family

ABC --- 1989 - TGIF!!

CBS --- 1971 - The Rural Purge

NBC --- 2004 - The End Of Must See TV

MTV and MuchMusic --- When they stopped playing music videos for good

FOX/UPN/WB - Day 1

Nick At Nite/TV Land - When the classics were replaced with more modern series and reality shows to attract younger audiences

TBS - When it was replaced by PeachTree in Canada

When all of the networks began showing "Unscripted" (That's Game and "Reality" Shows for those of you in Rio Linda!) shows. :crazy: Not to mention when they upped the number of commercials shown during each show to 20 or more minutes per hour. :thumbsdow

ABC --- 1989 - TGIF!!

CBS --- 1971 - The Rural Purge

NBC --- 2004 - The End Of Must See TV

MTV and MuchMusic --- When they stopped playing music videos for good

FOX/UPN/WB - Day 1

Nick At Nite/TV Land - When the classics were replaced with more modern series and reality shows to attract younger audiences

TBS - When it was replaced by PeachTree in Canada

I agree about MTV, Nick at Nite and TV Land. Notice how it's The Viacom Channels that Jumped The Shark?

I agree about MTV, Nick at Nite and TV Land. Notice how it's The Viacom Channels that Jumped The Shark?

Did you get my message? I sent to you few days ago.

Nick GAS: When the Original Double Dare left the schedule

MTV: When Carson Daly left Total Request Live in 2003 and when the network ditch the music videos completely shortly after the Original TRL cancellation in 2008 and Michael Jackson's passing in 2009

Nicktoons & Cartoon Network: When the Network started airing live action programming

Nickelodeon: In 2009, when they debuted a newer logo

UPN: When the network moved WWE Smackdown to Friday from Thursday

The Disney Channel: The 2014-2016 Rebrand Era

FOX: Ratings Collapse during the 2012-2013 season

The Networks JTS when Survivor premiered beginning the reality crap and ABC put WWTBAM on every night of the week.

MTV - When they stopped playing music videos

VH1 - Same as MTV

Fuse - Less music, and shows that have nothing to do with music at all

Nick At Nite/TV Land - When starting to focus on nothing but original series and the same sitcoms and movies you can watch anywhere else

Disney Channel - Started jumping the shark when the classic shows got removed, though at least there's Ducktales, Muppet Babies, and that Bug Juice revival

Nickelodeon - JTS a few years ago

I agree about MTV, Nick at Nite and TV Land. Notice how it's The Viacom Channels that Jumped The Shark (http://officialfan.proboards.com/thread/490972/when-mtv-jump-shark)?

One suggestion that I read is that the reality show (https://www.buzzfeed.com/natashavc/why-mtv-cant-stop-making-reality-exploitation) Laguna Beach signified the moment that MTV would never get out (https://www.youtube.com/results?search_query=mtv+downfall) of its "network decay" (http://www.mandatory.com/fun/140550-analyzing-the-end-of-music-television). It was shows like Laguna Beach (https://www.quora.com/Did-reality-shows-like-Laguna-Beach-in-hindsight-officially-mark-the-point-of-no-return-moment-in-regards-to-MTVs-supposed-network-decay) that served as a symbol of the vapidness of youth culture in the 2000s.

Personally, I think what really "symbolically" killed MTV was the emergence of social media. To put things into perspective, a show like TRL was as huge as it was back in the late '90s-early 2000s because it was really the only true central hub of pop music and really pop culture. Now, celebrities have more readily available outlets to promote themselves through YouTube (which seriously hurt MTV's bottom-line form a video standpoint only because you no longer had to wade around hours at at time to catch your favorite video), Instagram, Twitter, and Facebook. Another confirmation of MTV never getting back to where it needs or should be was back in 2011, when it brazenly refused to acknowledge (http://www.infobarrel.com/Will_MTV_Blow_Off_Its_35th_Birthday) its 30th anniversary since it wanted to be eternally seen as solely a channel for "young people" (https://www.reddit.com/r/television/comments/6nx2vv/mtv_isnt_what_it_used_to_be_it_used_to_be_closely/dkda1p6/) (instead of their parents).

UPN/The WB: 2006. When they both merged into The CW.

Nickelodeon: 2009. When they changed into their newer logo. Especially when they started to make shows like Fanboy and Chum Chum after their logo change.

MTV: Around the late 2000s. Their golden age was basically the 90s up to 2003. But when they started to make reality shows, that's when it started to be degrading.

Comedy Central: 2014. When Jon Stewart left The Daily Show and was replaced by Trevor Noah. Trevor was never really funny to begin with.

Nicktoons Network: Same as Nickelodeon.

Nick GaS: New Years Eve 2007. I wouldn't say it was bad, but that's when they were rebranded as The N. This was to make Noggin as a 24-hour channel.

Cartoon Network: 2010. Personally, I never really liked CN that much after the Check-It era started. Even with shows like Adventure Time and Regular Show, it wasn't really the best stuff CN ever had.

Boomerang: 2015. When they changed not only their logo, but also most of their programming in general.

The Disney Channel: Late 2008/early 2009. This was when I started to not watch Disney Channel as it was just The Hannah Montana Network by that time.

Toon Disney: 2009. When they rebranded as Disney XD.

Discovery Kids/The Hub Network/Discovery Family: 2010. When they were rebranded as The Hub. It really changed the whole network by that point.

UPN/The WB: 2006. When they both merged into The CW.

Nickelodeon: 2009. When they changed into their newer logo. Especially when they started to make shows like Fanboy and Chum Chum after their logo change.

MTV: Around the late 2000s. Their golden age was basically the 90s up to 2003. But when they started to make reality shows, that's when it started to be degrading.

Comedy Central: 2014. When Jon Stewart left The Daily Show and was replaced by Trevor Noah. Trevor was never really funny to begin with.

Nicktoons Network: Same as Nickelodeon.

Nick GaS: New Years Eve 2007. I wouldn't say it was bad, but that's when they were rebranded as The N. This was to make Noggin as a 24-hour channel.

Cartoon Network: 2010. Personally, I never really liked CN that much after the Check-It era started. Even with shows like Adventure Time and Regular Show, it wasn't really the best stuff CN ever had.

Boomerang: 2015. When they changed not only their logo, but also most of their programming in general.

The Disney Channel: Late 2008/early 2009. This was when I started to not watch Disney Channel as it was just The Hannah Montana Network by that time.

Toon Disney: 2009. When they rebranded as Disney XD.

Discovery Kids/The Hub Network/Discovery Family: 2010. When they were rebranded as The Hub. It really changed the whole network by that point.

The Hub Network: What Should Have Been (https://cartoonhistorian.blogspot.com/2015/05/the-hub-network-what-should-have-been.html)

The Hub Network's Biggest Screw-Ups (https://cartoonhistorian.blogspot.com/2014/04/the-hub-networks-biggest-screw-ups.html)