两种表达法都存在语法错误,因为, thinking about 必须和 I 遥相呼应。你可以这样写:
1。 Only a few of the current TV shows, to my surprise, have the potential to become classics.
2. Only a few of the current TV shows, in my opinion, have the potential to become classics.
3. When thinking about which current TV shows have the potential to become classics, I am surprised that only a few do.