Naturally these will change over time but from what can be gathered from internet searching, the following are the most popular as of now (02|2013)
How official this list is suspect so take it with a grain of salt since Nielsen ratings don't really separate teen viewing habits from their regular ratings.
1.Pretty Little Liars2010 -2.iCarly2007 - 20123.Victorious2010 -4.Power Rangers1993 -5.Degrassi: The Next Generation2001 -6.My Babysitter's A Vampire: The Series2011 -7.Sabrina, the Teenage Witch1996 - 20038.Saved by the Bell1989 - 19939.Blue's Clues1996 - 200610.Drake & Josh2004 - 200811.American Dragon: Jake Long2005 - 200712.Caillou1998 - 200613.Arthur1996 -14.H2O: Just Add Water2006 - 201015.Ned's Declassified School Survival Guide2004 - 200716.Big Time Rush2009 -17.The Avengers: Earth's Mightiest Heroes2010 -18.Wizards of Waverly Place2007 - 201219.The Naked Brothers Band2007 - 200920.Thomas The Tank Engine & Friends1984 - 201121.Shake It Up2010 -22.Goosebumps1995 - 199823.Flight 29 Down2005 - 200724.Marvin Marvin2012 -25.Zoey 101
In Asia the most popular TV shows are dramas and reality shows. They include Pure 19, Coffee Prince and Sawang Biang.
The most popular TV show on ABC is The Bachelorette. Some other popular TV shows on ABC are Modern Family, Jimmy Kimmel Live, Pretty Little Liars and many more.
Television had not been invented in 1037.
Probably Hannah Montana. Not My Favourite Mine Is Wizards Of Waverly Place But Hannah Montana Is Probably The Most Popular & Favourite Show In The US Because Of The Teens & Kids That Watch It.
Some of the most popular TV shows in 2007 included "Grey's Anatomy," "Desperate Housewives," "CSI: Crime Scene Investigation," "House," and "Lost." These shows attracted a large viewership and were talked about widely during that time.
The Bravo television channel airs a variety of different shows. Popular television shows include Top Chef, the Real Housewives, and Project Runway.
One of the most popular are Kargin Serial (Cool Serial)
glee!
ER or Buffy the Vampire Slayer
Winx Club is widely known as a popular TV show that originated in Italy.
According to TV.com, NCIS was ranked 1 in the top 10 most popular shows of 2010.
Drama, game shows, sitcoms, etc.