CBS has been considering picking up Medium if NBC drops the long-running series, according to The Hollywood Reporter.
The move would mirror last year's leap of Scrubs from NBC to ABC.
In both cases, a long-running show that got little respect from NBC went to the network affiliated with the studio behind it: ABC Studios for Scrubs and CBS TV Studios for Medium.
Medium, starring Patricia Arquette, is considered on the bubble for renewal. NBC announces its fall schedule on Tuesday; CBS unveils its schedule on Wednesday.