In addition, Amazon promised a 4k stream of Tony Bennett & Lady Gaga: Cheek To Cheek LIVE! that aired on PBS, October 24th.
The promise to deliver 4k streams (what Amazon carefully refers to as a “great selection of Ultra HD content”) at no additional charge to subscribers is no doubt an attempt to lure Netflix subscribers to try Prime Instant Video, which offers several additional services in addition to unlimited video streaming.
Amazon recently added unlimited cloud photo storage to the list of benefits of being a Prime member, in addition to existing services that include unlimited free two-day shipping on most items, unlimited music streaming with Prime Music, and access to the Kindle Lending Library for those who own Kindle readers.