The ornamental design for a televisionreceiver, as shown and described.
1. Television receiver
1.1 : Perspective
1.2 : Front
1.3 : Back
1.4 : Left
1.5 : Right
1.6 : Top
1.7 : Bottom
1.8 : Alternate Perspective view shown installed on a wall
1.9 : Alternate Top view showing display in an alternate position
The broken line showing of the wall in reproduction 1.8 is included for the purpose of illustrating environmental subject matter and forms no part of the claimed design. The fine lines on the drawings indicate the display part; reproductions 1.1 to 1.7 are front perspective, front, back, left, right, top and bottom views of the television receiver; reproduction 1.8 is an alternate perspective view showing an example of the use state in which the claimed design is installed on the wall; and reproduction 1.9 is an alternate top view showing a process in which the display moves along with the wall by the sliding structure formed at the top of the body.