telethon
US /ˈtel.ə.θɑːn/
UK /ˈtel.ə.θɑːn/

1.
teleton, maratona televisiva
a long television program, typically lasting for several hours or even days, broadcast to raise money for a charity or other cause
:
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The annual children's hospital telethon raised millions of dollars.
O teleton anual do hospital infantil arrecadou milhões de dólares.
•
Many celebrities participated in the charity telethon.
Muitas celebridades participaram do teleton de caridade.