I think Ms. Learned is doing a fine job as Katherine while standing in for an ailing Jeanne Cooper. It is rather strange seeing someone else portraying a character we've loved for so long. But, Jeanne will be back on December 23. In the meantime, I'll enjoy watching Ms. Learned perform again! I loved her in The Waltons!
I was wondering what happened to Mrs. C, as soon as I saw the other actress I became worried. I would be sincerly hurt if something happens to her in "real life". I feel like I know her personally after so many years of watching Y&R. ;(