It’s TV cliffhanger time again: Will George kill off Rex and run away with Bree on ``Desperate Housewives’’? Will the ``Lost’’ castaways pull a ``Castaway’’ andescape their island prison on a raft? Will Quentin Tarantino deliver an F-bomb-free finale on ``CSI’’?

In honor of the time-honored tradition of keeping viewers on the edge of their seats until the fall season, Inside TV comes out with its list of the Top 10 TV cliffhangers of all time.

And not surprising, checking in at No. 1 is ``Dallas’’ for ``Who Shot J.R.?’’

The 1981 episode had millions wondering if long-suffering wife Sue Ellen Ewing (Linda Gray) finally pulled the trigger on her cheating hubby, played by Larry Hagman. It topped ``Friends,’’ ``Alias,’’ and ``The Sopranos’’ as the top cliffhanger of all time.

Here’s the Top 10:

10. ``DYNASTY’’ - ``Massacre in Moldavia’’ (1985): The wedding of Amanda Carrington (Catherine Oxenberg) and Prince Michael (Michael Praed) turned into a bloodbath during a terrorist coup in fictional Moldavia.

9. ``STAR TREK: THE NEXT GENERATION’’ - ``Abducted by Borgs’’ (1990): Capt. Jean-Luc Picard (Patrick Stewart) was abducted by the Borg and brainwashed, forcing Commander Will Riker (Jonathan Frakes) to attempt a daring rescue.

8. ``BUFFY THE VAMPIRE SLAYER’’ - ``Buffy’s Big Sacrifice’’ (2001): Buffy (Sarah Michelle Gellar) sacrificed her life to save her sister Dawn and the rest of the world.

7. SOUTH PARK - ``Who’s Cartman’s Dad?’’ (1999): The paternity of the meanest, fattest kid on TV had fans guessing.

6. ``THE PRACTICE’’ - ``Who Stabbed Lindsay?’’ (1999): Lindsay (Kelli Williams) was stabbed by an unknown assailant wearing a nun’s habit.

5. ``24’’ - ``The Flesh-Eating Disease’’ (2003): President Palmer (Dennis Haysbert) collapsed after shaking hands with a crowd of supporters including an assassin, who had transferred a poisonous flesh-eating disease to his hand.

4. ``THE SOPRANOS’’ - ``Tony Moves Out’’ (2002): Carmela (Edie Falco) was happy Tony (James Gandolfini) bought a beach house until his Russian lover called to taunt her about their affair.

3. ``ALIAS’’ - ``Missing in Action’’ (2003):After disappearing for two years, Sydney (Jennifer Garner) woke up with no memory and a stomach scar and found that Vaughn (Michael Vartan) had gotten married.

2. ``FRIENDS’’ - ``The Wrong Name’’ (1998): While reciting his wedding vows to Emily (Helen Baxendale), Ross (David Schwimmer) said Rachel’s (Jennifer Aniston) name instead.

1. ``DALLAS’’ - ``Who Shot J.R.?’’ (1981): When hated oil mogul J.R. Ewing (Larry Hagman) was shot, his brother Bobby (Patrick Duffy), rival Cliff (Ken Kercheval), wife Sue Ellen were all suspects.