Does broadcasting in amateur radio interfer with AM/FM or other
boardcasting wavelength signals? Neighbours are concerned that if I
put up a 45 foot radio antenna in may backyard that this could
interfer with everyone's elses TV/radio receptions. Any information
out there that can be offered would be much appreciated.

A well designed ham radio station will not interfer with well designed
equipment of other services. Too bad that most comsumer grade radio and tv
receivers are not well designed. One RCA TVin my house would pick up my
transmissions tuil I wrapped the AC power wire around a core of material to
supress the ling cord picking up the signal. The CATV is suspose to be
shielded but as they use the same frequencies as some ham transmitters you
can wipe out their signal. It is up to the catv people to resolve that
problem.