Great find none.
Since Propstore has more than just Star Wars items I decided to compile a list of all the OT videos they’ve made (as of Dec. 2020). I’ve organized them somewhat; the first category being videos that cover several movies or that contain longer interviews. The rest is dived into the three OT films and each “item” placed more or less in order of appearance in the movie.
STAR WARS | Prop Store Nov. 25 2020 LIVE Auction Highlights
https://www.youtube.com/watch?v=3hc5iXdXTgE - (25 mins long).
STAR WARS ORIGINAL TRILOGY - Original Props and Artwork
https://www.youtube.com/watch?v=-a3EkkLgAgk - part of the 2016 Phil Tippett Auction (3 mins long).
STAR WARS EP IV: A NEW HOPE - Original Holochess Creature Sketches
https://www.youtube.com/watch?v=4mPgexapc9o - part of the 2016 Phil Tippett Auction (2 mins long).
STAR WARS EP V: THE EMPIRE STRIKES BACK - Original AT-AT Walker Animation Notes
https://www.youtube.com/watch?v=sL96KQPrS4U - part of the 2016 Phil Tippett Auction (2 mins long).
STAR WARS EP V: THE EMPIRE STRIKES BACK - Original Tauntaun Sketches and Notes
https://www.youtube.com/watch?v=NaYeXJfCbv8 - part of the 2016 Phil Tippett Auction (2 mins long).
STAR WARS EP V: THE EMPIRE STRIKES BACK - Dennis Muren’s Hand-Written Camera Diagrams
https://www.youtube.com/watch?v=4SoT1aLCddw - part of the 2016 Phil Tippett Auction (2 mins long).
Various Storyboards and Artwork from the STAR WARS Trilogy (1977-1983)
https://www.youtube.com/watch?v=Kt97I1z5mC8 - (5 mins long).
Various Storyboard Lots from STAR WARS: THE EMPIRE STRIKES BACK (1980) and RETURN OF THE JEDI (1983)
https://www.youtube.com/watch?v=388catzUd2c - (4:40 mins long).
Lot #727 Syd Wragg Interview - Screen-matched Tantive IV Stormtrooper Helmet spotlight video
https://www.youtube.com/watch?v=q1blScCJ8pc - (4:15 mins long).
Lot #727 Syd Wragg Interview - Screen-matched Tantive IV Stormtrooper Helmet [Extended Cut]
https://www.youtube.com/watch?v=SOS1ZMgv6g4 - (22 mins long).
Lot #709 STAR WARS: A NEW HOPE (1977) - Luke Skywalker’s (Mark Hamill) Production-Made Lightsaber
https://www.youtube.com/watch?v=Ir4pxbbFy-Q - (20 sec long).
Lot 306 Star Wars: A New Hope - C-3PO (Anthony Daniels) Costume Hand Pair
https://www.youtube.com/watch?v=utsMk_uQUKQ - (1:30 mins long).
Lot #447 STAR WARS: A NEW HOPE (1977) - Stormtrooper Helmet
https://www.youtube.com/watch?v=wwPtgEQX0xE - (30 sec long).
Lot 422 - STAR WARS: A NEW HOPE (1977) - TIE Fighter Pilot Helmet
https://www.youtube.com/watch?v=iLdC3lLqb4M - (50 sec long).
Lot 423 - STAR WARS: A NEW HOPE (1977) - ILM Motion Control ‘Rama’ Camera
https://www.youtube.com/watch?v=BmoiJ5NP6xQ - (3:30 mins long).
Lot 373 Star Wars: A New Hope (1977) - Over-Sized Death Star Surface Panel
https://www.youtube.com/watch?v=L8EloC-WENk - (1 min long).
Princess Leia Medal Ceremony Dress | Prop Store
https://www.youtube.com/watch?v=ykVIDWTROmE - (40 sec long).
Lot 430 - STAR WARS: THE EMPIRE STRIKES BACK (1980) - Walker Head Dyeline
https://www.youtube.com/watch?v=UkwCZNiyHlI - (40 sec long).
Lot 431 - STAR WARS: THE EMPIRE STRIKES BACK (1980) - Walker Head Dyelines with Joe Johnston Notes
https://www.youtube.com/watch?v=Y3YVot0vh2w - (40 sec long).
Lot 317 Star Wars: The Empire Strikes Back - Empireflex Norway Camera Cover Display
https://www.youtube.com/watch?v=rmas_NacFQc - (1 min long).
Lot #463 STAR WARS: THE EMPIRE STRIKES BACK (1980) Han Solo’s (Harrison Ford) Jacket
https://www.youtube.com/watch?v=Ug-O38UHsTU - (7 mins long).
Lot 391 Star Wars: The Empire Strikes Back (1980) - Stormtrooper Helmet
https://www.youtube.com/watch?v=07s2PJHiqAk - (1 min long).
Prop Store Of London Empire Strikes Back E 11 Blaster
https://www.youtube.com/watch?v=k6TlLMFMHx4 - (1:15mins long).
Lot 432 - STAR WARS: THE EMPIRE STRIKES BACK (1980) - Imperial Walker Model Miniature Head Casting
https://www.youtube.com/watch?v=SszxGsUWntY - (1 min long).
Lot 448 - STAR WARS THE EMPIRE STRIKES BACK (1980) - X-Wing ILM Model Miniature
https://www.youtube.com/watch?v=8LpgVrtWp10 - (3 mins long).
Comic Con Minute Original Star Wars 3CPO hand presented by The Propstore
https://www.youtube.com/watch?v=497kgHQ8ohA - (2:40 mins long).
Prop Store Of London Star Wars Rebel Blaster
https://www.youtube.com/watch?v=xVX3odMuMLA - (1:40 mins long).
Lot #472 - STAR WARS: THE EMPIRE STRIKES BACK (1980) - Darth Vader Promotional Tour Helmet
https://www.youtube.com/watch?v=z_b11PGzQHM - (30 sec long).
Lot #471 - STAR WARS: THE EMPIRE STRIKES BACK (1980) - Sprocket Systems KEM 35mm Film Editing Table
https://www.youtube.com/watch?v=cwQ641zdbLA - (1 min long).
STAR WARS: RETURN OF THE JEDI (1983) - Various Crew Apparel Lots
https://www.youtube.com/watch?v=i8nU1Nn1t8Q - (1:20 mins long).
Lot 326 Star Wars: Return of the Jedi - Gamorrean Guard Head Casting
https://www.youtube.com/watch?v=jmn1cQPsd3I - (50 sec long).
Lot 327 Star Wars: Return of the Jedi - Jabba the Hutt’s Barge Gargoyle
https://www.youtube.com/watch?v=HS1ArqanJDY - (1:15 mins long).
Lot 330 Star Wars Return of the Jedi - Biker Scout Helmet
https://www.youtube.com/watch?v=ARK_ZGCsMYw - (1:30 mins long).
Lot #490 - STAR WARS: RETURN OF THE JEDI (1983) - ILM Y-Wing Model Miniature
https://www.youtube.com/watch?v=amWetQavw4E - (2 mins long).
Lot 476 - STAR WARS: RETURN OF THE JEDI (1983) - Low Altitude Death Star Turbo Cannon
https://www.youtube.com/watch?v=O736xRYt3Ik - (40 sec long).
Lot 477 - STAR WARS: RETURN OF THE JEDI (1983) - Low Altitude Death Star Turbo Cannon
https://www.youtube.com/watch?v=MC8hgmJASy4 - (50 sec long).
Lot 409 Star Wars: Return of the Jedi (1983) - Anakin Skywalker Facial Appliances and Lifecast
https://www.youtube.com/watch?v=QYF6w6LLOvQ - (1 min long).