if i add Beam Gen 2 to Era 100s and Sub mini, willl that allow my speakers to work with my TV?

Yes

Not to contradict @nik9669a….but taking your question a bit further for clarification sake...

• If using the Beam2 and the Era 100 and Sub to create a home theater you are spot-on as the Era 100 and Sub-mini are bonded to the Beam2
• On the other hand if you are planing to Group the Beam2 to the Era 100 and bonded Sub-Mini (meaning the latter two are a separate room apart from the Beam2) there will be a 75ms delay to the Era 100 w/Sub-mini for TV audio.
• Grouping all for music there is no delay
• Also know that if Grouping is your goal the low-end from the TV audio will not transfer to the sub-mini that is bonded to the Era 100’s