async Task SearchVideos(string tag)
{
_searchResultsVideos = SearchHelpers.SearchVideos(tag, _searchResultsVideos);
await DispatchHelper.InvokeInUIThread(Windows.UI.Core.CoreDispatcherPriority.Low, () =>
{
OnPropertyChanged(nameof(SearchResultsVideos));
OnPropertyChanged(nameof(ResultsCount));
});
}