The ATSC RX flowgraph has been fixed to allow for proper decoding. The original flowgraph had rate mismatches between the RX filter and the FPLL block that prevented proper decoding. This version also has a number of performance enhancements that ultimately allow the stream to be watched in real-time. These changes capitalize on new PRs for GR master branch. The ATSC RX filter was broken into its 2 respective parts (an RRC block and a resampler). The RRC block now uses the faster FFT RRC convenience wrapper, and the PFB arb resampler was crushing performance. So the sampling rate was adjusted to match the ATSC symbol rate*sps. This removed the need for a resampler altogether, significantly reducing CPU load. Processor core affinity based on a GRCon17 presentation was also applied to separate out blocks and prevent thread migration. Some cleanup was also done in the FPLL receiver block. Note that in using this in real-time, performance enhancements in PR 3076 that has not been merged into master yet are also important. The FPLL loop has some speedups due to the inlining of the NCO and sincos functions, and takes advantage of the already-merged cx_limited_range performance improvement in the FPLL loop too. An additional change to support fast CC multiply on systems that do not support the cx_limited_range compiler flag can be incorporated once 3076 is merged. This block also is better annotated for others to understand some of the design choices. Ultimately with the networking block in grnet, smplayer can be pointed at the flowgraph and TV watched in real-time. See the flowgraph for additional notes.