Something really cool I just found out about a week or two ago. Japan had an exclusive Legend of Zelda game only available on their satellite subscription service.
Between August 6, 1995 and May 30, 1999 Nintendo in collaboration with St.GIGA broadcast three different Zelda titles to fans for download via the Super Famicom’s Satellaview subsystem. BS Zelda no Densetsu,BS Zelda no Densetsu: MAP2, and BS Zelda no Densetsu: Inishie no Sekiban
More info about the gameplay, and ROM’s, here