The characteristic expression of the daytime TV host was a concerned furrowing of the brow; for the radio host, an incredulous sneer. Sincerity, a tone that conveyed openness and a desire for honest exchange, even when it was actually a bit oily and disingenuous, was the characteristic mode of talk TV; authenticity, the appearance of no-holds-barred self-expression, more often than not a carefully cultivated schtick, was the quality affected by radio shock jocks.
