Friday’s edition of “20/20″ will offer updates on the “Hope for Haiti Now” telethon.The telethon airs from 8 to 10 p.m. on many channels, including ABC. The ABC newsmagazine follows at 10 on WFTV-Channel 9.Friday’s edition will contain:***A Barbara Walters interview with Lady Gaga. The Grammy nominee will discuss what she considers the public’s biggest [...]

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