All Jalec scenes (plus a few individual ones I liked, mostly Lightwoods related) on Openload (starting with season 2b), where you should be able to stream as well as download them. (I hope they’re okay quality-wise - I have no idea why Openload compressed most of them so much.)
1x01 - The Mortal Cup
1x02 - The Descent Into Hell Isn't Easy
1x03 - Dead Man's Party
1x04 - Raising Hell
1x05 - Moo Shu to Go
1x06 - Of Men and Angels
1x07 - Major Arcana
1x08 - Bad Blood
1x09 - Rise Up
1x10 - This World Inverted
1x11 - Blood Calls to Blood
1x12 - Malec
1x13 - Morning Star
2x01 - This Guilty Blood
2x02 - A Door Into the Dark
2x03 - Parabatai Lost
2x04 - Day of Wrath
2x05 - Dust and Shadows
2x06 - Iron Sisters (only 1:30 minutes - includes the part of the Malec date about Alec's lack of a dating history)
2x07 - How Are Thou Fallen (another short one, includes Alec & Izzy talking about Jessica Hawkblue)
2x08 - Love Is a Devil
2x09 - Bound By Blood
2x10 - By the Light of Dawn
2x11 - Mea Maxima Culpa
2x12 - You Are Not Your Own
2x13 - Those of Demon Blood (plus The Mummy special)
2x14 - The Fair Folk
2x15 - A Problem of Memory
2x16 - Day of Atonement
2x17 - A Dark Reflection
2x18 - Awake, Arise, or Be Forever Fallen
2x19 - Hail and Farewell
2x20 - Beside Still Water
