On EarthExplorer, the Data Set tab displays Collection 1 and Pre-Collection datasets, as shown in the graphic below.
The following Pre-Collection datasets have been consolidated for Collection 1:
L8 OLI/TIRS and L8 OLI/TIRS Pre-WRS-2 = L8 OLI/TIRS
L7 ETM+ SLC-off and L7 ETM+ SLC-on = L7 ETM+
In addition, the Additional Criteria tab for each data set will be modified to allow users to select parameters to each Landsat sensor (i.e., Landsat 7 SLC-on/SLC-off, T1/T2/RT, or RMSE range).