American Horror Story - 6 series ongoing  - season 5 was vampire based

Being Human (UK) - 5 series, 2009-2013

Being Human (USA) - 4 seasons, 2011-2013

Blade - one season, 2006

Blood - one season 2005. Anime

Blood Ties - one season, 2007

Buffy the Vampire Slayer - 7 seasons 1997-2002. Spinoff series called Angel, 5 seasons.

Dark Shadows - 1966-1971, 1245 episodes.

Dark Shadows : The Revival. One season 1991

Death Valley - one season 2011.

Dracula - One series 2013.

Dracula - Due on the BBC 2019

Forever Knight - 3 seasons in the 1990's

Forever Sucks - Filipino - ongoing, currently on Season 2

From dusk til Dawn - 3 seasons, ongoing

Hellsing - One season, 2002. Anime.

Hemlock Grove - 3 seasons, 2013-2015

Kindred The Embraced - One season, 1990's

Moonlight - one season 2007

My Babysitter's a Vampire - 2 series 2011-2012

Penny Dreadful - 3 series, 2014-2016.

Shadowhunters - 2 seasons ongoing

Supernatural - 12 series, ongoing

The Gates - One season 2010

The Strain - 3 seasons so far, ongoing

The Vampire Diaries - 8 series, ongoing as of Nov 2016. Spinoff series called The Originals - 4 seasons so far, ongoing. 

True Blood - 7 seasons, now finished.  Spinoff called Midnight, Texas ongoing

Ultraviolet - one series, 2000

Van Helsing - two series, ongoing... season 3 confirmed