Question about twitter?

[Donald]

I watch a lot of ESPN shows and sometimes I tweet into the show while I am watching, but that's all I use twitter for.

Whenever someone follows me I block them.

I don't have any followers and I don't want any.

All I want to use twitter for, is to tweet espn every once in a while, and receive updates on sports.

If I change my twitter settings to Protect my Tweets, can espn still see my tweets that I send them?

If they can, will they be able to tweet me back?

I spent about 20 minutes searching the twitter faq section and google searching but I can't find the answer.

Please help.
Wow.

Every single person so far has said something completely different.

I guess no one knows.

If any one really does know for sure, please include a source to prove your just not making stuff up.
Thanks Karen for providing a source.

But what if I tweet someone that is not following me. Will they be able to see my tweet?

I understand that my normal tweets can not be seen by anyone that is not approved by me, but if I tweet someone like @espn will they be able to see my tweet because I tweeted them directly even though they are not following me?