Retrieve and store broadcasters into data table.

Change-Id: I107ccbbc61a5e8024f21a7a30fae9fea00c90bde
Handle sorting of broadcasters correctly.

Change-Id: Iab46c26606880f0fa7c7067d8514b8be3629fe0f
Use the mdds storage types directly rather than using CellValues.

Change-Id: I415b3cddc4b764668564affd573ae9cc00601278
Use correct index to access row arrays, to prevent out-of-range access.

Change-Id: Ia74c0f07c7f1021de92f77fdb93b2279a3b8462c