the new era of late shows

tonight Jimmy Fallon takes over late night TV. he is taking over for Conan who is taking place for Leno who is retiring. this is an intriguing move my NBC have Conan going main stream in Leno's place. it will be interesting. another thing that may be ruining late night TV tonight is the beginning of a whole week with U2 on David Letterman. does anyone really want watch U2 five nights a week? come on