A best practice for building Broadcast Experiences is to include the following curation rules for your Flows:

• Reject links: who is going to click on TV? Be careful when rejecting links since pictures are also links (i.e., pic.twitter.com). So before rejecting links, a rule must be added to accept pictures or keep them pending for manual moderation.
  
  
• Reject ReTweets: those usually do not look good on TV and could lead to duplicated content (i.e., a very popular tweet that gets dozens of ReTweets).