The ornamental design for a televisionreceiver, as shown and described.
1. Television receiver
1.1 is a front perspective view.
1.2 is a front elevation view.
1.3 is a rear elevation view.
1.4 is a left side elevation view, the right side elevation view being a mirror image.
1.5 is a top plan view.
1.6 is a bottom plan view.
1.7 is a rear perspective view.
1.8 is a first reference view, shown in use.
1.9 is a second reference view, shown in use.
1.10 is a third reference view, shown in use.
The broken lines shown in reproductions 1.8, 1.9 and 1.10 are included for the purpose of illustrating environment of the television receiver that form no part of the claim.