I read from dead air to dead letter.

The word of the episode is "dead air".

"It's Always Sunny in Philadelphia" clip from:

https://youtu.be/9tfVJ9oo2YI

Theme music from Tom Maslowski

https://zestysol.com/

Merchandising!

https://www.teepublic.com/user/spejampar

"The Dictionary - Letter A" on YouTube

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