Every day, Amazon offers up “Lightning Deals,” limited quantities of various products for a discounted price for a 4-hour window of time. You have to be on the lookout for these deals and once the item runs out within that four hours, the sale is over. Meaning, if you see something on sale that you want, buy it immediately before it’s gone.

Typically you don’t know what will be on sale until the minute it gets posted, but as part of their Holiday event, Amazon has released this week’s Lightning Deal schedule for Movies & TV on DVD and Blu-ray. See below for a list of today’s deals — which begin at 8:30am PST and run through 9:30pm PST — along with more information on how these special deals work. The last deal goes up at 5:30pm PST.

There’s also TONS of extremely low prices and great deals on DVDs and Blu-rays right now, so visit the TOP HOLIDAY DEALS page to see the wide selection.

Also, Amazon’s Blu-ray box set deal of the week is the Glee: The Complete First Season Blu-ray Edition for only $34.99 (that’s 50% off the list price of $69.99). The TV Deal of the Week is Married…with Children: The Complete Series DVD box set for only $116.99 (that’s 53% off the list price of $250.95). Both deals are valid only for this week through December 18, 2010.

THURSDAY, DECEMBER 16, 2010

5:30 a.m. – 9:30 a.m. PST

Scrubs: The Complete Collection
DVD – $88.99

Friday Night Lights: The Fourth Season
DVD – $13.99

30 Rock: Seasons 1 & 2
DVD – $24.99

A River Runs Through It
Blu-ray – $12.99

9:30 a.m. – 1:30 p.m. PST

Alice in Wonderland
(Three-Disc Blu-ray/DVD Combo w/Digital Copy + Film Cell Photo Frame) (Amazon.com Exclusive)
Blu-ray – $19.99

Watchmen
(Blu-ray Director’s Cut with Amazon Exclusive Nite Owl Ship)
Blu-ray – $14.99

The Dark Knight
(Limited Edition with Batpod)
Blu-ray – $19.99

1:30 p.m. – 5:30 p.m. PST

The Imaginarium of Doctor Parnassus
DVD – $12.99

The Imaginarium of Doctor Parnassus
Blu-ray – $14.99

Heroes Blu-ray Franchise Collection (Seasons 1 and 2) Amazon.com Exclusive
Blu-ray – $39.99

Midnight Express
Blu-ray – $12.99

Black Hawk Down
Blu-ray – $9.99

5:30 p.m. – 9:30 p.m. PST

Ellery Queen Mysteries
DVD – $19.99

Soap: The Complete Series
DVD – $22.99

The Abbott & Costello Show: The Complete Series
DVD – $19.99

Easy Rider
Blu-ray – $12.99

Silverado
Blu-ray – $12.99

Note – the discounted price won’t appear on the product page, you have to put it in your cart and check out to see the sale price (there should also be a button at the top right that says Lightening Deal that will show the main LD page).

Per Amazon:

Lightning Deals have a limited quantity at the prices listed below, so it helps to move quickly if you see something you like. You now have a limited time to purchase a Lightning Deal after it has been added to your Cart. After you add the deal to your Cart, you will have 15 minutes to make the purchase. You will be notified by an alert that will display in the upper right-hand corner of the page when you have 10 minutes remaining to make your purchase. You must check out within this timeframe to receive your promotional discount.

If you have not purchased the deal before the time runs out, the discount will no longer apply to the product in your Cart and will be available to other customers who are interested in the deal. If quantities run out, you may apply to be waitlisted for that item.