‘ET’ alum John Tesh details 10-year battle with rare cancer: ‘I was given 18 months to live’

John Tesh says it’s a miracle that he’s alive.

The “Entertainment Tonight” alum told Page Six in an exclusive interview that in 2015, he was diagnosed with “a rare form of cancer.”

“I was given 18 months to live,” he shared. “So, I’ve been fig...