Salah in Islam has been fixed and cannot accept any modification or change. While one can offer du’as (supplications) in any language one chooses, the readings of salah, especially the Qur’an, must be in Arabic; and while at it, we are not allowed to look in a translation. I know of no scholar who permits this.

Coming to the issue of following an Imam relayed on TV leading taraaweeh, it is also not considered as recommended; in other words, you are not allowed to pray simply by long distance relaying of prayer; I do not know of any reliable scholar permitting such an action. So you are better advised to refrain from it. 

This, however, is not intended to discourage you from following the recitation of the imam relayed through TV in translation as long as you do so outside the salah.

Having said this, I must rush to point out: If you are a new Muslim, and you do not know to read or follow the Qur'an in Arabic, then you may read the translation until such time that you have mastered enough of the Qur'an in Arabic to read in the salah. May Allah guide us all to the ways of rectitiude in thought, words and actions-aameen.