are often considered to be the "Friday night death slot", due to the concept that many shows scheduled on or moved to Friday nights would not last long before cancellation due to low ratings. Some shows have achieved success on Fridays even with the notion of the "death slot" (examples include CBS's Hawaii Five-0, Blue Bloods and MacGyver, programs within the now-defunct TGIF lineup, and more recently Shark Tank, both aired on ABC in the U.S.). Other "death slots" include Saturday nights, the 12:00 noon and 4:00 p.m. weekday time slots (at least during the 1980s; both time slots have since been abandoned by all networks and given to local news or syndication), and the time slot or slots immediately opposite popular shows such as American Idol or the Super Bowl (see also Super Bowl counterprogramming). The phenomenon of fewer viewers on Friday and Saturday is in part because most people (particularly the younger viewers that advertisers often seek) are usually not home to watch television on Friday and Saturday nights as they participate in leisure activities on those days, and as a result, programs that air during this time usually receive low ratings. However, some cable channels aimed at children, teenagers or preadolescence audiences (such as Nickelodeon, Cartoon Network and Disney Channel) have experienced success with original programs that they commonly air in the perceived Friday and Saturday night death slots; Nickelodeon in particular, has aired first-run teen programs during Saturday prime time since 1992 with the creation of the SNICK block (later renamed TeenNick from 2004 to 2009), as well as ABC's "TGIF" block from the 1980s and '90s. Following prime time, late-local news often air, followed by late night television programs. Late-night shows are predominantly targeted toward younger male audiences (college students and people who suffer from insomnia are also a large audience for late night programs) and feature a common format of a male host delivering a stand-up comedy routine (known as a monologue) centered around current events, followed by several guests and a house band's performance. Overnight After the late night shows, programming varies; this time slot between approximately 2:00 and 6:00 a.m. is known as overnight (or the "graveyard slot" due to the extremely low numbers of viewers). This daypart is the only portion of the day not monitored or reported on by Nielsen in the U.S. in most circumstances, although many stations still