ABC's Ugly Betty is based off this low budget Colombian telenovela........

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Yo soy Betty, la fea
Telenovela
8/10 · IMDb
Yo soy Betty, la fea is a telenovela filmed in Colombia, written by Fernando Gaitán and produced from 25 October 1999 to 8 May 2001 by the Colombian network RCN. More than a dozen versions of the telenovela have been made in other countries. Wikipedia
First episode date: October 25, 1999
Final episode date: May 8, 2001
Network: RCN Televisión
Adaptations: La fea más bella (2006), Ugly Betty (2006), BrzydUla(2008)
Spin-offs: Yo soy Bea, Verliebt in Berlin