I'm not much for re-watching, but I have watched Goblin twice (& eps 9. 14-15-16 multiple times) Thanks to YouTube, I can watch my favorite Goblin clips whenever I find myself missing this drama.. 

Kill Me, Heal Me clips

Episodes 11 & 12 from Sawan Biang. After the madness at the beginning, I like watching Kawee's transformation (great job Ken!!).
Nice man
Beautiful Life 
Master's Sun
Bridal Mask
Leh Ratree
Ice Fantasy
Which Star Are You From
Fall In Love With Me 
Full House - thai
Murphy's Law of Love 
Love Around 
Love Now
Strong Woman Do Bong Soon 
My Amazing Boyfriend 
W
hello monster
moon lovers
marriage not dating
you're all surrounded
just you
kleun cheewit
full house thai. 
1. Boss and Me
2. Love O2O 
3. My Sunshine
4. Healer
5. Oh my Venus
6. Master's Sun
7. Docotors
Healer
Pinocchio
You Who Came From The Stars
I Can Hear Your Voice
Cheese in the Trap
Dream High
W - Two Worlds
Weightlifting Fairy Kim Bok Joo
Queen In Hyun's Man
Secret Garden
He's Beautiful
My Girlfriend is Gumiho
Can You Hear My Heart
Secret
Mama
Across the Ocean to See You
A Gentleman's Dignity
Kill Me Heal Me
She Was Pretty
The Greatest Love
Dream High
Stay with Me
I Hear Your Voice
Empress Ki
Princess Hours
The Best Hit
Hana yori dango
I hear your voice
only 3  so far o,o 
1. Signal 
2. The K2 
3. Siren 
Playful kiss (korean ver.)
The Legend
Oh My Venus
Coffee Prince
City Hunter
To The beautiful You
Boys over Flowers
Heartstring
Boss And Me
Return of the Condor Heroes 2006
Sungkyunkwan Scandal
The Three Musketeers
Personal Taste
Swords of Legends
Flower Boy Ramen Shop
Full House Take 2
Gu Family Book
Dream High
Arang and the Magistrate
Emergency Couple

Above all dramas watched more than twice n some are more than 5 times.
Gentlemans Dignity
Winter Sonata
Vampire Prosecutor
Lovers in Paris
The Springs Day of My Life
Goblin
The Lover (2015)
Pasta
Dr Frost
Phoenix
Shine or Go Crazy
Sign
Bad Guy (2010)
Ms Temper and Nam Jung Gi
Autumn Tale
Gun Metal Grey
Mrs Cop (S1)
Healing Hands

Its Okay, That's Love
Legend of the Blue Sea 
Faith
Boys Over Flowers
Sungkyunkwan Scandal
Coffee Prince
Shut Up: Flower Boy Band
Secret Garden (regrettably, there is a story behind me doing so) 
School 2013
Reply 1997
White Christmas
Personal Taste
Hana Kimi (and its multiple versions)

Healer
Something about 1% korean version
Age of Youth