Yoo's television debut was on the KBS Comedian Festival (for college students) in 1991, where he performed a parody of a commercial with Choi Seung-gyung.
Debut televisi Yoo dimulai dari Festival Komedi KBS (untuk mahasiswa) pada tahun 1991, dimana dia melakukan parodi komersil dengan Choi Seung-gyung (Hangul: 최승경).