episodes. The third series was the first in the main series to feature a live launch, with all subsequent series featuring a live launch. The series continued to air for seven nights a week until Big Brother 8, which aired every night excluding Saturday. The ninth series re-introduced the seven episodes per week format, which has been continued throughout all future series'. When the series premiered, it was aired in a 4:3 aspect ratio instead of the more common 16:9 widescreen format seen by other series at the time. Beginning in 2006 with the seventh series, the show was broadcast in the 16:9 format. Following the show's move to Channel 5, it was broadcast in HD. The series can be viewed on Demand 5, a branch of Channel 5, after it airs. Aside from the main series, the show featured a live feed into the house where viewers could watch the housemates at any time. With the series debut in 2000, the twenty-four-hour live feed was introduced which was available at any time to viewers for free. The live feed featured an estimated ten-minute delay to comply with broadcasting standards. Beginning with the second series, the live feed became available on E4 as well. In 2009, it was confirmed that the live feeds would not return for the tenth series due to a "small uptake" of subscriptions in the previous year. The feeds did return the following year, though required viewers to pay a fee, for what was at the time slated to be the show's final series. Following the show's move to Channel 5, the live feeds have not been featured for any subsequent series. In 2013, it was announced that the live feed would return in the form of a two-hour nightly show that featured a live look into the House; the show was cancelled in June of that year, reportedly due to low ratings. Despite this, the feed was re-instated onto the official Channel 5 website for the remainder of the fourteenth series. Numerous spin-off series have aired either immediately after or shortly following both the highlight episodes and the live episodes. Big Brother's Big Mouth, aired following the highlight shows. The show was initially presented by Russell Brand from 2004 to 2007, but he did not return for subsequent series which featured a different presenter weekly. Big Brother's Big Mouth did not return following the show's