The ornamental design for a televisionreceiver, as shown and described.
1. Television receiver
1.1 : Perspective, shown with the display in a fully retracted position
1.2 : Front
1.3 : Back
1.4 : Left, the Right being a mirror image
1.5 : Top
1.6 : Bottom
1.7 : Perspective 2, shown with the display in a partially extended position
1.8 : Front 2
1.9 : Back 2
1.10 : Left 2 , the Right 2 being a mirror image
1.11 : Top 2
1.12 : Bottom 2
1.13 : Perspective 3, shown with the display in a further partially extended position
1.14 : Front 3
1.15 : Back 3
1.16 : Left 3, the Right 3 being a mirror image
1.17 : Top 3
1.18 : Bottom 3
1.19 : Perspective 4, shown with the display in a fully extended position
1.20 : Front 4
1.21 : Back 4
1.22 : Left 4, the Right 4 being a mirror image
1.23 : Top 4
1.24 : Bottom 4
The broken lines depict portions of the television receiver that form no part of the claimed design. The front surface and the back surface adjacent to the top surface and devoid of shading form no part of the claimed design.