In a message on its website, Louisiana Public Broadcasting tells visitors it may have to cut local programming, lay off 20 percent of its staff and possibly even “go off the air one or two days a week,” possibly Monday and Friday, as it comes up against state funding cuts. The pubcaster is facing a $656,000 reduction before the end of June and a potential $2 million cut beginning in July. “It’s not anything we want to do. It’s not our choice,” Joe Traigle, LPB Foundation chairman, told the Advocate newspaper on Tuesday. The reporter got readers’ attention by pointing out that no programming on Mondays and Fridays would mean — gasp! — that Antiques Roadshow wouldn’t be on.