Do mainstream talk shows about abuse raise awareness or just trivialize abuse?

Both. Still, they provide an important service. One of the main weapons of the abuser is secrecy. He/she may force victims to remain mum either by threatening them or by creating a "shared psychosis" (follies-a-deux).

Abuse thrives in Silence! If one person is made aware that they are being abused - Or that they act abusively - Then it has served a purpose.