T-learning or interactive learning through digital television is an alternative to take advantage of Digital Television (DTV)’s potential, as it enables the development and supply of educational content. This paper introduces the areas of knowledge known as t-leaning and development methodologies, before introducing the design of the “Agile model for the development of T-learning content”. Such model is based on good software engineering practices, particularly on agile values and principles approaching SCRUM and BDD, aimed at their application and adaptation to the t-leaning context. Then it is combined with other software engineering practices which have proved to be useful in the development of this type of educational content, and addresses technical, educational and customization aspects of this kind of content. This research is part of the project “Good practice model for the development of T-learning educational content”. Keywords: BDD; content development; SCRUM; T-learning, TVD