toy advertising campaigns
...that children up to the age of five can find it difficult to distinguish between television programmes and toy advertising campaigns?
...that children up to the age of five can find it difficult to distinguish between <a class="mw-redirect" href="./Television_program" id="mwA5k" rel="mw:WikiLink" title="Television program">television programmes</a> and <b id="mwA5o"><a href="./Toy_advertising" id="mwA5s" rel="mw:WikiLink" title="Toy advertising">toy advertising campaigns</a></b>?