This paper addresses the problem of unsupervised TV program structuring. Program structuring allows to improve browsing and interaction with TV programs. Our work addresses the structuring of recurrent TV programs like entertainment programs, shows,
magazines... It relies on the automatic detection of separators in programs using a repeated sequence detection method that is applied over a set of episodes of the same TV program. Separators are short sequences that are inserted between different parts of a program and that are repeated between and/or within the episodes of the same program. The effectiveness of the approach has been evaluated over 54 episodes of daily TV programs.