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1. to use the tv as a one-way communication student teacher interaction cannot be moderate. 2. tv, not as a substitute instructor, completely. Learners need to learn lessons from other media, contains additional or a rescue instructor guidance or more unified watch list, description, or a lesson on television. 3. the potential obstacles in communication, such as a power failure or the environment of the participant's. Lose concentration in class 4. the production may not be good enough. Making of teaching is not of interest. 5. it is necessary to have the high cost of purchasing devices that can shoot and use the techniques of how to produce a quality list.

1. Using TV one way communication students instructors cannot speak the dialog together

2.Television is not a substitute instructor equipment entirely. Students need to study more lessons from other media includeLessons on television with
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3. Potential obstacles in communication, such as power failure or the environment of students ไม่เอื้ออำนวย. The concentration in learning

4. Production list may not good enough. The teaching is not interesting, as can be 5

.Need to charge high in purchasing equipment can be filmed and used techniques in the production of items with quality.