The next twenty years brought great change. In 1958, Bill retired and his son Bruce took over. Just as full-size railroads were being hard-hit by new technology, so too were model railroads. Leisure time was spent in front of the TV set, not the train set. In 1960, Walthers became a full-line distributor of other manufacturers' products while continuing expansion of the Walthers lines. By the start of the 1970s, business was booming again, and Bruce's son Phil joined the company.