Brainspace: UMFM

Context: Tim is signing off from his airport interview with Tartar.

Tim : Er, check you later. Um.
      This is Tim Mactananda (?), U-um, er, U-M-E-F, er,
      U-M-F-M, intelligent people's radio signing off;
      back to the studio now.

Note: I'm not sure about the spelling of "Mactananda".