'Black-ish' Star Anthony Anderson -- Wife Files for Divorce

Anthony Anderson is about to be married only on television ... because the "Black-ish" star's wife has filed for divorce.

Anderson's wife Alvina filed the document, citing irreconcilable differences.

The couple was married in 1995 (they were high school sweethearts), and have two children together, ages 19 and 15. She's asking for joint legal custody of the minor and primary physical custody, with Anthony getting "reasonable visitation."

Alvina is asking for spousal support.

This is a little odd ... Alvina lists the date of separation as April 1, 2014 ... that's before "Black-ish" even premiered. It's unclear if she'll lay claim to Anthony's "Black-ish" money.

In addition to the hit ABC show, Anderson also hosts a show on the Food Network, "Carnival Cravings with Anthony Anderson."