Continuing its sale this week on Network Television DVDs, Amazon is offering up two NBC sitcoms on DVD for a discount.

The Gold Box spotlight deal of the day over at Amazon today is The Office: Seasons 1-5 for $71.99 (that’s 64% off the list price of $199.98) and 30 Rock: Seasons 1-3 for $44.99 (that’s 64% off the list price of $125.98).

The Office 18-disc set contains the first 100 episodes of the U.S. series, along with bonus features like deleted scenes, gag reels, commentaries, webisodes, and more. The 30 Rock 8-disc set contains 58 episodes of the show, plus bonus features.

Note, this sale is valid while supplies last through today (Thursday, May 6, 2010) until midnight PST.

If you’re at all familiar with either of these series, then I don’t need to tell you how great owning these DVDs would be. Both shows are hilarious and definitely worth owning.

For those of you who need the Math:

— The Office: 5 Seasons divided by $71.99 = $14.40 each season [deal!]
— 30 Rock: 3 Seasons divided by $44.99 = $15 each season [deal!]