Big Brother 3 was the third season of the reality show Big Brother in Bulgaria. It was aired on Nova Television and Nova+. The show launched on 18 September and ended on 11 December 2006. Originally, the season was planned to continue for 11 weeks (78 Days), 2 weeks shorter than the previous two seasons. However, Big Brother 3 was lengthened with 7 Days and continued for 85 Days in total. For the first time the show was hosted only by Niki Kanchev. Big Brother 3 was the first season of the show in Bulgaria to be won by a woman - Lyubov (one of the triplets). The previous winners were all males - Zdravko (BB1, also participated in VIPB2), Miroslav (BB2) and Konstantin (VIPB1). This season, the prize was 500 000 leva. However, the Housemates were being punished with 5 000 leva for each break of the rules (not wearing microphones, discussing the nominations etc.), so the big prize dropped to 200 000 leva (just like in BB1 and BB2). Big Brother 3 also introduced the first Big Brother talk show in Bulgaria - Big Brother's Big Mouth (hosted by Dim Dukov from VIPB1). It was aired four (initially three) times a week. This season was also known as "the season of the secrets" - there were many secret tasks during it.
18 Housemates entered the House on Day 1.
Borislav Borisov is from Sofia. He entered the house on Day 1 and was the fourth evicted on Day 50. During the show he started romantic relationships with one of the other housemates - Lilyana. They are not together any more.