nighttime schedule. The time range of Nick at Nite's programming has shifted over the years, to the point whereby the early 2000s, its classic series consisted primarily of shows from the late 1970s to the late 1990s, and also included series from the early and mid-2000s by the end of that decade and into the early 2010s. The early success with classic television series, as well as the eventual shift away from series made prior to 1985, eventually led to the creation of digital broadcast networks similar to Nick at Nite's original format such as the Retro Television Network, Antenna TV and MeTV (which have featured many shows formerly seen on Nick at Nite). Nick at Nite airs approximately all of its programming in hour-long (and sometimes two-hour) blocks, which were branded under the "Double Takes" banner from 2002 to 2007; typically series that air back-to-back are scheduled in two blocks, one in primetime and one in late night. Also typically, series that have been airing on Nick at Nite for at least three years are often moved exclusively to the overnight schedule in order to make room for newly acquired series (though in the past, entire broadcast runs of a few series such as Perfect Strangers and Charles in Charge have aired in an overnight graveyard slot for a short period of time following their debut on the network). For about a year-and-a-half prior to the September 28, 2009 rebrand, Nick at Nite aired marathons of programming from midnight to 5:00 a.m. Eastern Time. Nick at Nite was previously one of the few basic cable channels in the United States that continued to sign off for scheduled satellite maintenance, occurring on a Wednesday morning from 5:30 to 6:00 a.m. Eastern Time on a bi-monthly basis, with color bars being displayed during the sign-off period (ViacomCBS-owned sister channels Nick Jr., Nicktoons, MTV and its spin-off channels, VH1, and VH1 Classic also sign off for a half-hour on a bi-monthly basis at the same time as Nick at Nite for the same reason); it is also one of only a handful of cable channels to have discontinued airing infomercials. Nickelodeon (through Nick at Nite) ran infomercials in some overnight timeslots from 1987 to 1998 (making Nickelodeon one of the few currently operating kids-targeted channels to discontinue airing paid programming, others include Universal Kids, and it is also only one of two