Wal-Mart is purchasing video on demand service Vudu and could be looking to challenge other Internet movie delivery services such as Amazon, Hulu, Blockbuster (CinemaNow) and Netflix. Vudu is one of the options on many Internet ready movie devices sold today including HDTVs, like the ones sold at Wal-Mart. Wal-Mart has made a significant push into electronics while purchasing Vudu moves them into a service area that will extend Wal-Marts reach into consumers home for an extended period of time.