Presenters and other staff at the O&Os also occasionally take on duties at the network level, alongside their existing capacities at the local level. For example, several local anchors at CTV's O&Os have filled in for Lloyd Robertson in the past on the network's national newscast "CTV National News"; and weathercasters from CTV's Toronto and Vancouver O&Os (CFTO-DT and CIVT-DT, respectively) present the weather segments on CTV News Channel. A number of personalities at New York City radio and television stations have also done assignments for both a station and a parent network at the same time, due to their proximity to network studios and offices. Likewise, presenters from the network appear on some of their O&O stations' local news bulletins. For instance in the UK, the "ITV Lunchtime News" presenter also presents the "ITV News London" bulletin that immediately follows. Another example is BBC's "Breakfast", which broadcasts from Media City Salford Quays, the home of BBC North West (serving greater Manchester and Liverpool); BBC North West Tonight Presenter Roger Johnson presents some Sunday editions of "Breakfast".