We tend to consider a successful show as one that goes on for many seasons, although we fail to also consider the quality of each individual season. After all, is a two season show that has consistent good quality any less good than, say, a five season show that fumbles horribly at the end.Consider this list then as a sort of warning; if you haven’t seen the following shows then, tread carefully. Some of them might have fantastic beginnings, but their final moments leave a lot to be desired. From fantasy dramas and zombie sagas to mysteries and prestige television, these are shows whose complete runs feel like serious endurance tests.cnx.cmd.push(function() {cnx({playerId: "106e33c0-3911-473c-b599-b1426db57530",}).render("0270c398a82f44f49c23c16122516796");});IMDbOnce Upon a TimeOnce Upon a Time lasted seven seasons, but its final year introduced a new setting, curse, and largely different cast. Rotten Tomatoes’ audience reviews frequently describe Season 7 as feeling disconnected from everything viewers originally loved.IMDbUnder the DomeUnder the Dome began as a successful adaptation of Stephen King’s premise but quickly stretched beyond its source material. Viewership and critical enthusiasm declined sharply, and increasingly bizarre plots made its three-season run difficult to justify finishing.IMDbThe Walking DeadThe Walking Dead became a massive television phenomenon, but its eleven-season run eventually suffered from repetitive conflicts, expanding casts, and declining momentum. By its ending, announced spin-offs also made several major characters’ survival feel increasingly predetermined.IMDbPretty Little LiarsPretty Little Liars kept audiences watching through mysteries, anonymous threats, and increasingly complicated twists. Unfortunately, maintaining that suspense for seven seasons required piling mystery upon mystery, leaving many viewers exhausted by revelations that became progressively harder to believe.IMDbHouse of CardsHouse of Cards began as one of streaming television’s defining dramas, but its final season faced the loss of Kevin Spacey and attempted to continue without Frank Underwood. The result was widely regarded as an especially unsuccessful conclusion.IMDbGleeGlee was never a model of narrative consistency, but its later seasons became particularly chaotic. Characters disappeared, storylines were abandoned, and the show’s identity shifted repeatedly, making its complete six-season journey considerably harder to finish than its energetic beginning.IMDbTrue BloodTrue Blood began with an entertainingly outrageous mix of vampires, sex, horror, and Southern Gothic melodrama. As additional supernatural creatures and increasingly complicated mythology accumulated, the series became progressively more absurd before reaching a heavily criticized conclusion.IMDbDexterDexter remained compelling for several years, but later seasons increasingly tested viewers’ patience with questionable decisions and recycled conflicts. Its original finale became infamous enough that the franchise later returned with Dexter: New Blood to revisit the character’s story.IMDbThe Secret Life of the American TeenagerThis teen drama lasted five seasons despite dialogue and storylines that frequently inspired disbelief. Its melodramatic approach to adolescent relationships, pregnancies, and family problems produced a devoted audience, but finishing all 121 episodes requires serious commitment.IMDbHemlock GroveHemlock Grove arrived with an intriguing premise involving werewolves, vampires, and gruesome body horror. Across three seasons, however, its increasingly convoluted mythology and wildly inconsistent storytelling made the Netflix series difficult to follow through to its conclusion.IMDbSleepy HollowSleepy Hollow’s first season successfully reinvented Washington Irving’s mythology as a supernatural procedural. Later seasons lost important characters, including Nicole Beharie’s Abbie Mills, and increasingly drifted away from the central partnership that originally made the show work.IMDbFear the Walking DeadFear the Walking Dead began as a companion series with a distinctive premise: witnessing civilization collapse from the beginning. Over eight seasons, major cast changes and repeated creative reinventions made it increasingly resemble a different show altogether.IMDbRiverdaleRiverdale started as an exaggerated murder mystery using Archie Comics characters, then escalated into cults, organ trafficking, superpowers, alternate realities, and time travel. Its commitment to constant escalation became entertainingly bizarre, but finishing seven seasons remains an enormous undertaking.IMDbThe FlashThe Flash began as one of the most popular Arrowverse shows, but its nine-season run increasingly relied on repetitive speedster threats and complicated multiverse storytelling. Keeping track of every resurrection, timeline alteration, and returning villain became exhausting.IMDb13 Reasons Why13 Reasons Why began as a controversial but relatively focused drama about Hannah Baker’s suicide and its aftermath. Extending the story across four seasons introduced increasingly sensational plots, including murder, cover-ups, and characters behaving in wildly implausible ways.The post 15 Shows We Have a Hard Time Believing People Finished appeared first on Den of Geek.