Auditions Open auditions for the series took place in
Manchester on 15–16 January 2010, in
Dublin on 19 January 2010, in
Cardiff on 23 January 2010, in
Glasgow on 30 January 2010 and in
London on 6–7 February 2010.
Pre-series On 10 May, the
Celebrity Big Brother 7 website was replaced with a
Big Brother 11 mini-site updated with 23 pictures of
Big Brother 11s new trailer. The trailer was aired on Channel 4 during
The Million Pound Drop Live on 24 May. The trailer featured 30 ex-housemates from the past 10 series of
Big Brother attending a funeral of the Diary Room Chair, with show narrator
Marcus Bentley as the priest. On 14 May, it was announced on the
Big Brother mini-site that
Emma Willis would be joining the current presenter of ''
Big Brother's Little Brother, George Lamb, as co-host for the series. On 17 May, break bumpers featuring the falling flowers began showing on Channel 4. To celebrate the final series of Big Brother
, Davina McCall hosted a special programme, Big Brother's Big Awards Show, where the British public has bestowed accolades upon memorable housemates from the previous series. This special was aired on E4 on 22 May. A further programme, Big Brother Exposed: The Inside Story'', was aired on 28 May on E4, brought viewers highlights of the past ten series. On 21 May, Channel 4 unveiled the floral-themed eye logo for this summer's series of
Big Brother.
Eye logo The logo, which was made up of hundreds of vibrant flowers, and was a tribute to its past series since its debut in July 2000.
Title Sequence The titles had a carnival theme which included spinning cogs, a gramophone which was exploding with flower petals, a ventriloquist dummy and a spinning Big Brother clock which was striking 11. There was also cutaway messages during the titles, spelling out 'Welcome' 'To The' 'Mad House'.
Format The theme for this series was
carnival. Like always, housemates entered the
House with no contact with the outside world. Each week, the housemates took part in a compulsory task that determined the amount of money they were allocated to spend on their shopping; if they passed, they received a luxury budget and they were allocated a basic budget if they failed. Housemates nominated two housemates for eviction every week. In a new nominations twist revealed on Day 6, the nominated housemates were allowed to escape nominations with a weekly Save and Replace challenge. The Save and Replace winner is exempt from nominations, however, they must replace themselves with another housemate of their choice for eviction. This nominations twist that was held every week is similar to the
Power of Veto from the
American version of Big Brother.
Eviction format The
eviction format saw a number of changes, at the beginning of an eviction show, a round-up of the weeks events - featuring
newspaper headlines - would be shown to viewers. This series saw the return of McCall announcing the eviction from outside the house with the housemates hearing the live audience cheering, booing and chanting. Occasionally, If more than two housemates faced eviction, McCall would announce which nominee(s) will be safe, however, this was only done a handful of times (Week 1, 2 and 7), three housemates face eviction in Weeks 3, 5 and 8, and four in Week 9, where no announcement of who was safe was announced, in Week 10 eight housemates faced the public vote which would lead to the first ever quadruple eviction, out of the four times McCall spoke to the house she would announce one nominee who was safe and then announce the evictee who would have to leave immediately. The eviction announcements were made in no particular order (see Nominations Table), John James received the highest number of eviction votes, followed by Corin, Sam and Steve, however the order they left the house was Steve, Corin, Sam and John James. Another change to the eviction format was the housemates 'best bits getting shown before the interview rather than at the end as in every other series - although the
previous Celebrity series adopted this format. The panel format used in the eviction interviews
the previous year did not return, instead McCall interviewed the evictee in a one-on-one format, however, for the first time ever, viewers could call in with questions to ask the evictee. Also, evictees were shown goodbye messages the housemates recorded for them in the event of their departure, similar to the format used in
the American version of the show. The new eviction format continued for
Ultimate Big Brother, the only difference that all interviews were performed outside of the studio. ==Special features==