(L-R) Simon Helberg, Kunal Nayyar and Mayim Bialik watch as Melissa Rauch prepares to sign her name on the block of cement as members from the cast of the television series "The Big Bang Theory" attend their Hand and Footprint Ceremony at the TCL Chinese Theater in Hollywood, California on May 1, 2019. (Photo by Frederic J. BROWN / AFP)