Complex sentence: Her IMDb profile shows that her first TV appearance was in 1975, in the telenovela "Perla" in which she played the dual role of Julieta/Perla alongside Leonardo Garcia in 1998.
Split into simpler sentences: Her IMDb profile shows that her first TV appearance was in 1975. In her first starting role in a telenovela "Perla", Silvia played a dual role of Julieta/Perla alongside Leonardo Garcia in 1998.