watch movies through tv using AV component -infos

hey guys i would like to know if i could watch movies through my tv with my ipod touch 4g using the component AV cable. As i read some posts around internet there seem to be some problems either with the compability of the tv or the ios version. is it true?any infos around the subject gladly accepted. and finally i heard that movies purchased from itunes arent "supported" from the cable and cant be shown.True?and what about these that are transfered through pc (via itunes)? thnx in regard! 😉