Firmware/Apple TV/2.x

Apple TV firmware prior to tvOS 9.0 (Apple TV HD) have two different version and build numbers, which can lead to confusion when referencing them. As such, the internal build number is the best way to refer to a specific firmware.

The "Marketing"/"Displayed" columns are what is reported on the Apple TV's "About" screen
The "Internal" column refers to the ProductVersion and ProductBuildVersion keys in the IPSW's BuildManifest.plist

Apple TV (1st generation)

Version		Build	Release Date	Download URL	SHA1 Hash	File Size	Release Notes
Marketing	Internal	Build	Release Date	Download URL	SHA1 Hash	File Size	Release Notes
2.0	10.4.7	8N5400	12 February 2008	~~2Z694-5274-109.dmg^{[permanent dead link]}~~	?	?	Release Notes^{[permanent dead link]}
2.0.1		8N5455	28 March 2008	~~2Z694-5387-25.dmg^{[permanent dead link]}~~	?	?
2.0.2		8N5461	14 April 2008	~~2Z694-5428-3.dmg^{[permanent dead link]}~~	?	?
2.1		8N5519	9 July 2008	~~2Z694-5485-1.dmg^{[permanent dead link]}~~	?	?
2.2		8N5622	2 October 2008	~~2Z694-5499.dmg^{[permanent dead link]}~~	?	?
2.3		8N5722	19 November 2008	~~2Z694-5573-24.dmg^{[permanent dead link]}~~	?	?
2.3.1		8N5818	24 February 2009	~~2Z694-5587-18.dmg^{[permanent dead link]}~~	?	?
2.4		8N5880	24 June 2009	2Z694-5660-029.dmg	`6d433f28a6d4002822e86be484e2654bc6c59532`	187,360,282