I loved her sitcom when I was a kid! IIRC, it was on CBS at 9:30 on Monday nights. I used to beg my mother to let me stay up and watch it. Since she loved Doris Day, she usually let me.
I thought it was on Saturday night. My mom was a big Doris Day fan and usually watched the show. I was a young'n to pre-teen while it was on the air.