Channels 232, 234, 235, 236 and 238 (and mirrors in the 8000 block)
KTLA Los Angeles (CW)
WPIX New York (CW)
KWGN Denver (CW)
WSBK Boston (Ind.)
WWOR New York (MyTV)
Super stations became available on Dish Network in December of 1996 (or earlier). KTLA, WSBK and WPIX were included as part of America's Top 50 at its creation. At the time you had a choice of America's Top 40 at $20 and America's Top 50 at $25 a month. WGN was also there but it had already started becoming "WGN Superstation" and was not a true local station as the others are to this day.
In 1998 dish added about 7 or so channels including Bravo and AMC. The three super stations were split off the package that became America's top 60. WWOR was added to the $4.99 "super station package". A couple of months later KWGN was added to the package as announced when forming the Super Station package.