UPDATE: Amazon has a promotion right now — Tweet and Get $5 — where you can get $5 in Video On Demand credit [thanks for the head’s up SoAndyway!].

The Video On Demand deal of the day over at Amazon today is The Walking Dead Season 1 for only $4.99.

Note, this deal is valid only for today (Monday, December 27, 2010) until midnight PST.

For the discounted price, you get all 6 episodes of Season 1 of the popular AMC zombie drama The Walking Dead, which just finished airing earlier this month. Episodes are typically $1.99 each, so you’d be saving over half the cost if you buy it today.

Also, Season 1 is currently available through Video On Demand in HD for $13.99 (or $2.99 per episode).

Through On Demand without commercials, the pilot episode is just over an hour, while the remaining five episodes are around 45 minutes each.